NDA questions
2295 published questions with worked solutions.
- What is the number of terms in the expansion of [(2x-3y)^2(2x+3y)^2]^2?
- In the expansion of (1+ax)^n, the first three terms are respectively 1, 12x and 64x^2. What is n equal to?
- The numbers 1, 5 and 25 can be three terms (not necessarily consecutive) of
- The sum of (p+q)^ th and (p-q)^ th terms of an AP is equal to
- If A is a square matrix of order n>1, then which one of the following is correct?
- What is the least value of 25 , cosec ^2x+36 ^2x?
- What is the value of 34^ 236^ - 56^ 124^ 28^ 88^ + 178^ 208^ ?
- 54^ can be expressed as
- If + =p, then what is ^2(2 ) equal to?
- What is the value of ^ -1 4 5 + ^ -1 5 4 - 2 ?
- If ^ -1 2p 1+p^2 - ^ -1 1-q^2 1+q^2 = ^ -1 2x 1-x^2 , then what is x equal to?
- If = 1 2 and = 1 3 , then what is the value of ( + )?
- If A= 3 4 , then what is the value of ( A 2 ) ( 3A 2 )?
- What is the value of 75^ + 75^ ?
- What is the value of 46^ 47^ 48^ 49^ 50^ 135^ ?
- If 2 = 3 , where 0< < 2 , then what is equal to?
- If the roots of the equation x^2+px+q=0 are 19^ and 26^ , then which one of the following is correct?
- What is the fourth term of an AP of n terms whose sum is n(n+1)?
- What is (1+ )^2+( - )^2- ^2 ^2 equal to?
- If p= cosec , - and q=( cosec , + )^ -1 , then which one of the following is correct?