Mathematics · Textbook solutions
Inverse Trigonometric Functions
Every solved example, exercise, and miscellaneous question, in the order the textbook teaches them. Plus every board question asked from this chapter. · 49 questions
2.2 Basic Concepts
16 q
Solved Examples
Worked · 2
- 2.1 Eg.1Find the principal value of .
- 2.1 Eg.2Find the principal value of .
Exercise 2.1
Practice · 14
- Ex 2.1 Q1Find the principal value of .
- Ex 2.1 Q2Find the principal value of .
- Ex 2.1 Q3Find the principal value of .
- Ex 2.1 Q4Find the principal value of .
- Ex 2.1 Q5Find the principal value of .
- Ex 2.1 Q6Find the principal value of .
- Ex 2.1 Q7Find the principal value of .
- Ex 2.1 Q8Find the principal value of .
- Ex 2.1 Q9Find the principal value of .
- Ex 2.1 Q10Find the principal value of .
- Ex 2.1 Q11Find the value of .
- Ex 2.1 Q12Find the value of .
- Ex 2.1 Q13If , then
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- Ex 2.1 Q14is equal to
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2.3 Properties of Inverse Trigonometric Functions
18 q
Solved Examples
Worked · 3
- 2.2 Eg.3Show that (i) (ii)
- 2.2 Eg.4Express in the simplest form.
- 2.2 Eg.5Write in the simplest form.
Exercise 2.2
Practice · 15
- Ex 2.2 Q1Prove that .
- Ex 2.2 Q2Prove that .
- Ex 2.2 Q3Write the following function in the simplest form: .
- Ex 2.2 Q4Write the following function in the simplest form: .
- Ex 2.2 Q5Write the following function in the simplest form: .
- Ex 2.2 Q6Write the following function in the simplest form: .
- Ex 2.2 Q7Write the following function in the simplest form: .
- Ex 2.2 Q8Find the value of .
- Ex 2.2 Q9Find the value of and .
- Ex 2.2 Q10Find the value of .
- Ex 2.2 Q11Find the value of .
- Ex 2.2 Q12Find the value of .
- Ex 2.2 Q13is equal to
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- Ex 2.2 Q14is equal to
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- Ex 2.2 Q15is equal to
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Miscellaneous Exercise on Chapter 2
15 q
Solved Examples
Worked · 1
- Misc Eg.6Find the value of .
Miscellaneous Exercise
Practice · 14
- Misc Q1Find the value of .
- Misc Q2Find the value of .
- Misc Q3Prove that .
- Misc Q4Prove that .
- Misc Q5Prove that .
- Misc Q6Prove that .
- Misc Q7Prove that .
- Misc Q8Prove that .
- Misc Q9Prove that .
- Misc Q10Prove that . [Hint: Put ]
- Misc Q11Solve the equation .
- Misc Q12Solve the equation .
- Misc Q13is equal to
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- Misc Q14, then is equal to
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What the board has asked from this chapter
Questions per paper · 21 papers · 2023 to 2026
Bars average the full papers of each year. 33 further questions come from set variants and are listed below.
2023: 2.6 questions per paper. 2024: 2.2 questions per paper. 2025: 2.3 questions per paper. 2026: 2.2 questions per paper
2026
25 q
- 1The domain of is :
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Domains, Ranges and Principal Value Branches - 1If , then
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Domains, Ranges and Principal Value Branches - 1The following graph represents :
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Domains, Ranges and Principal Value Branches - 1The following graph represents :
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Domains, Ranges and Principal Value Branches - 1The following graph represents :
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Domains, Ranges and Principal Value Branches - 3For the inverse trigonometric functions, which of the following Principal Value Branch is not correctly defined ?
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Domains, Ranges and Principal Value Branches - 3The principal value of is :
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Evaluating Inverse Trigonometric Expressions - 5The domain of is :
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Domains, Ranges and Principal Value Branches - 5If , then
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Domains, Ranges and Principal Value Branches - 12If , then
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Domains, Ranges and Principal Value Branches - 12The domain of is :
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Domains, Ranges and Principal Value Branches - 21Evaluate .Evaluating Inverse Trigonometric Expressions
- 21Evaluate .Evaluating Inverse Trigonometric Expressions
- 21Evaluate .Evaluating Inverse Trigonometric Expressions
- 21Evaluate :Evaluating Inverse Trigonometric Expressions
- 23 (a)Find the value of .Evaluating Inverse Trigonometric Expressions
- 23 (a)Simplify : , .Properties of Inverse Trigonometric Functions
- 25 (a)Simplify : , .Properties of Inverse Trigonometric Functions
- 23 (b)Evaluate : .Evaluating Inverse Trigonometric Expressions
- 25 (a)Simplify : , .Properties of Inverse Trigonometric Functions
- 25 (b)Evaluate :Evaluating Inverse Trigonometric Expressions
- 25 (b)Evaluate :Evaluating Inverse Trigonometric Expressions
- 32Find the domain of . Hence, find the value of for which . Also, write the range of .Domains, Ranges and Principal Value Branches
- 33Find the domain of . Hence, find the value of for which . Also, write the range of .Domains, Ranges and Principal Value Branches
- 34Find the domain of . Hence, find the value of for which . Also, write the range of other than its principal branch.Domains, Ranges and Principal Value Branches
2025
25 q
- 1The principal value of is :
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Evaluating Inverse Trigonometric Expressions - 1The principal branch of is :
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Domains, Ranges and Principal Value Branches - 1Domain of is :
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Domains, Ranges and Principal Value Branches - 1The given graph illustrates :
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Domains, Ranges and Principal Value Branches - 1Study the given graph. It illustrates :
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Domains, Ranges and Principal Value Branches - 2Domain of is :
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Domains, Ranges and Principal Value Branches - 3The graph shown below depicts :
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Domains, Ranges and Principal Value Branches - 3The graph shown below depicts :
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Domains, Ranges and Principal Value Branches - 3The following graph is a combination of :
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Domains, Ranges and Principal Value Branches - 5The principal value of is
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Evaluating Inverse Trigonometric Expressions - 5If , , then the range of y is
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Domains, Ranges and Principal Value Branches - 5is equal to :
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Evaluating Inverse Trigonometric Expressions - 5The value of is
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Evaluating Inverse Trigonometric Expressions - 21Find the domain of .Domains, Ranges and Principal Value Branches
- 7The principal value of is :
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Domains, Ranges and Principal Value Branches - 21Find the domain of .Domains, Ranges and Principal Value Branches
- 18The graph of a trigonometric function is as shown. Which of the following will represent graph of its inverse ?
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Domains, Ranges and Principal Value Branches - Questions number 19 and 20 are Assertion and Reason based questions. Two statements are given, one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the codes (A), (B), (C) and (D) as given below.20Assertion (A) : Set of values of is a null set. Reason (R) : is defined for .
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Domains, Ranges and Principal Value Branches - 21Find the domain of the function .Domains, Ranges and Principal Value Branches
- 21Find the domain of .Domains, Ranges and Principal Value Branches
- 22Evaluate :Evaluating Inverse Trigonometric Expressions
- 23 (a)Simplify .Properties of Inverse Trigonometric Functions
- 23 (b)Find domain of .Domains, Ranges and Principal Value Branches
- 24Solve for ,Properties of Inverse Trigonometric Functions
- 24Evaluate :Evaluating Inverse Trigonometric Expressions
2024
17 q
- Direction : In questions numbers 19 and 20, two statements are given one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the following options :19Assertion (A) : Domain of is . Reason (R) : The range of the principal value branch of is .
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Domains, Ranges and Principal Value Branches - 21If a and b then find the value of a + b.Evaluating Inverse Trigonometric Expressions
- 21Find value of k if .Evaluating Inverse Trigonometric Expressions
- 21 (a)Express , where in the simplest form.Properties of Inverse Trigonometric Functions
- 21Simplify : ;Properties of Inverse Trigonometric Functions
- 21Evaluate :Evaluating Inverse Trigonometric Expressions
- 21 (a)Find the value of .Evaluating Inverse Trigonometric Expressions
- 22 (a)Find the value of .Evaluating Inverse Trigonometric Expressions
- 21 (b)Find the domain of the function . Also, find its range.Domains, Ranges and Principal Value Branches
- 21 (b)Find the principal value of .Domains, Ranges and Principal Value Branches
- 22Evaluate :Evaluating Inverse Trigonometric Expressions
- 22 (b)Find the domain of . Also, find its range.Domains, Ranges and Principal Value Branches
- 24Find the value of .Evaluating Inverse Trigonometric Expressions
- If a function defined as is one-one and onto, then we can define a unique function such that , where and , . Function g is called the inverse of function f. The domain of sine function is R and function sine : is neither one-one nor onto. The following graph shows the sine function. Let sine function be defined from set A to such that inverse of sine function exists, i.e., is defined from to A. On the basis of the above information, answer the following questions :38 (i)If A is the interval other than principal value branch, give an example of one such interval.Domains, Ranges and Principal Value Branches
- If a function defined as is one-one and onto, then we can define a unique function such that , where and , . Function g is called the inverse of function f. The domain of sine function is R and function sine : is neither one-one nor onto. The following graph shows the sine function. Let sine function be defined from set A to such that inverse of sine function exists, i.e., is defined from to A. On the basis of the above information, answer the following questions :38 (ii)If is defined from to its principal value branch, find the value of .Evaluating Inverse Trigonometric Expressions
- If a function defined as is one-one and onto, then we can define a unique function such that , where and , . Function g is called the inverse of function f. The domain of sine function is R and function sine : is neither one-one nor onto. The following graph shows the sine function. Let sine function be defined from set A to such that inverse of sine function exists, i.e., is defined from to A. On the basis of the above information, answer the following questions :38 (iii) (a)Draw the graph of from to its principal value branch.Domains, Ranges and Principal Value Branches
- If a function defined as is one-one and onto, then we can define a unique function such that , where and , . Function g is called the inverse of function f. The domain of sine function is R and function sine : is neither one-one nor onto. The following graph shows the sine function. Let sine function be defined from set A to such that inverse of sine function exists, i.e., is defined from to A. On the basis of the above information, answer the following questions :38 (iii) (b)Find the domain and range of .Domains, Ranges and Principal Value Branches
2023
15 q
- 2is equal to
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Evaluating Inverse Trigonometric Expressions - In the following questions 19 & 20, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct answer out of the following choices :19Assertion (A) : Maximum value of is . Reason (R) : Range of the principal value branch of is .
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Domains, Ranges and Principal Value Branches - Questions number 19 and 20 are Assertion and Reason based questions carrying 1 mark each. Two statements are given, one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the codes (a), (b), (c) and (d) as given below.19Assertion (A) : The range of the function , where , is . Reason (R) : The range of the principal value branch of is .
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Domains, Ranges and Principal Value Branches - Questions number 19 and 20 are Assertion and Reason based questions carrying 1 mark each. Two statements are given, one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the codes (a), (b), (c) and (d) as given below.19Assertion (A) : All trigonometric functions have their inverses over their respective domains. Reason (R) : The inverse of exists for some .
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Domains, Ranges and Principal Value Branches - Questions number 19 and 20 are Assertion and Reason based questions carrying 1 mark each. Two statements are given, one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the codes (a), (b), (c) and (d) as given below.19Assertion (A) : Range of is . Reason (R) : Principal value branch of has range .
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Domains, Ranges and Principal Value Branches - 21Draw the graph of the principal branch of the function .Domains, Ranges and Principal Value Branches
- 21Write the domain and range (principle value branch) of the following functions :Domains, Ranges and Principal Value Branches
- 21 (a)Find the domain of .Domains, Ranges and Principal Value Branches
- 21 (a)Evaluate .Evaluating Inverse Trigonometric Expressions
- 21 (b)Evaluate :Evaluating Inverse Trigonometric Expressions
- 21 (b)Evaluate :Evaluating Inverse Trigonometric Expressions
- 21 (b)Draw the graph of , where . Also, write its range.Domains, Ranges and Principal Value Branches
- 22Find the value of .Evaluating Inverse Trigonometric Expressions
- 24 (a)Evaluate :Evaluating Inverse Trigonometric Expressions
- 24 (b)Draw the graph of , . Also, write range of f(x).Domains, Ranges and Principal Value Branches
The 10 board questions to practise first
The questions the board asked again come first, most asked first. Each one says how often and when.
Question 1
Asked 2 times: 2024*, 2026 (* = numbers or wording changed that year)
21Evaluate :Question 2
Asked 2 times: 2023*, 2025 (* = numbers or wording changed that year)
22Evaluate :Question 3
Asked 2 times: 2023, 2024
21 (b)Find the domain of the function . Also, find its range.Question 4
This type asked 4 times: 2023, 2024, 2025, 2026. This one: 2026
34Find the domain of . Hence, find the value of for which . Also, write the range of other than its principal branch.Question 5
This type asked 4 times: 2023, 2024, 2025, 2026. This one: 2026
25 (b)Evaluate :Question 6
This type asked 4 times: 2023, 2024, 2025, 2026. This one: 2026
3For the inverse trigonometric functions, which of the following Principal Value Branch is not correctly defined ?Tap an option to check your answer.
Question 7
This type asked 3 times: 2023, 2025, 2026. This one: 2026
21Evaluate .Question 8
This type asked 3 times: 2024, 2025, 2026. This one: 2026
25 (a)Simplify : , .Question 9
This type asked 3 times: 2023, 2024, 2025. This one: 2025
Two statements are given, one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the options given below.20Assertion (A) : Set of values of is a null set. Reason (R) : is defined for .Tap an option to check your answer.
Question 10
This type asked 2 times: 2025, 2026. This one: 2026
5The domain of is :Tap an option to check your answer.