Algebraic Identities and Simplification
98 CDS Mathematics previous year questions (PYQs) from 21 papers, 2016 to 2026, with answers and worked solutions.
About this chapter
- Difficulty: 7 easy · 53 moderate · 38 hard.
- Most-asked subtopics: Rational Algebraic Expressions (19), Conditional Identities (16), Squares and Cubes of a Binomial (12).
- Updated 20 September 2026.
#1Squares and Cubes of a Binomial
#2Squares and Cubes of a Binomial
#3Squares and Cubes of a Binomial
#4Squares and Cubes of a Binomial
#5Squares and Cubes of a Binomial
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#6Squares and Cubes of a Binomial
#7Squares and Cubes of a Binomial
#8Squares and Cubes of a Binomial
#9Squares and Cubes of a Binomial
#10Squares and Cubes of a Binomial
#11Squares and Cubes of a Binomial
#12Squares and Cubes of a Binomial
- Set · 2 questionsFor the next two (02) items that follow :
#13Reciprocal Sums x ± 1/x
#14Reciprocal Sums x ± 1/x
#15Reciprocal Sums x ± 1/x
#16Reciprocal Sums x ± 1/x
#17Reciprocal Sums x ± 1/x
#18Reciprocal Sums x ± 1/x
#19Reciprocal Sums x ± 1/x
#20Reciprocal Sums x ± 1/x
#21Reciprocal Sums x ± 1/x
#22Reciprocal Sums x ± 1/x
#23Reciprocal Sums x ± 1/x
#24Sums and Products of Three Variables
#25Sums and Products of Three Variables
#26Sums and Products of Three Variables
#27Sums and Products of Three Variables
#28Sums and Products of Three Variables
#29Sums and Products of Three Variables
#30Sums and Products of Three Variables
#31Sums and Products of Three Variables
#32Sums and Products of Three Variables
#33Sums and Products of Three Variables
#34Sums and Products of Three Variables
#35The Cube Identity and a + b + c = 0
#36The Cube Identity and a + b + c = 0
#37The Cube Identity and a + b + c = 0
#38The Cube Identity and a + b + c = 0
#39The Cube Identity and a + b + c = 0
#40The Cube Identity and a + b + c = 0
#41The Cube Identity and a + b + c = 0
- Set · 2 questionsLet , , .
#42The Cube Identity and a + b + c = 0
#43The Cube Identity and a + b + c = 0
#44The Cube Identity and a + b + c = 0
#45The Cube Identity and a + b + c = 0
#46Sums of Squares and Least Values
#47Sums of Squares and Least Values
#48Sums of Squares and Least Values
#49Sums of Squares and Least Values
#50Sums of Squares and Least Values
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