Day 320: NDA Maths
5 questions. Try each one first, then open its answer.
Question 1
Lines. Asked once: NDA 1 2024
63Triangle is an acute angled isosceles triangle. Two equal sides and lie on the lines and . If is one of the equal angles, then what is equal to?Tap an option to check your answer.
Question 2
Logarithms. Asked once: NDA 1 2018
32If , the value of is negative. This is justified byTap an option to check your answer.
Question 3
Matrices & Determinants. Asked once: NDA 1 2025
24If where are integers, is an orthogonal matrix, then what is the value of ?Tap an option to check your answer.
Question 4
Permutation & Combination. Asked once: NDA 2 2021
25Consider a regular polygon with 10 sides. What is the number of triangles that can be formed by joining the vertices which have no common side with any of the sides of the polygon?Tap an option to check your answer.
Question 5
Probability. Asked once: NDA 2 2024
113A fair coin is tossed till two heads occur in succession. What is the probability that the number of tosses required is less than 6?Tap an option to check your answer.