NDA questions
2827 published questions with worked solutions.
- The number of integer values of k, for which the equation 2 x=2k+1 has a solution, isNot in JEE Main syllabus
- If a_1, a_2, a_3, , a_9 are in GP, then what is the value of the following determinant? vmatrix a_1 & a_2 & a_3 a_4 & a_5 & a_6...
- If the roots of the quadratic equation x^2+2x+k=0 are real, then
- If n=100!, then what is the value of the following? 1 _2 n + 1 _3 n + 1 _4 n + + 1 _ 100 n
- If Z=1+i, where i= -1 , then what is the modulus of Z+ 2 Z ?
- If A and B are two matrices such that AB is of order n n, then which one of the following is correct?
- Let A= vmatrix p & q r & s vmatrix where p, q, r and s are any four different prime numbers less than 20. What is the maximum...
- If A and B are square matrices of order 2 such that (AB)= (BA), then which one of the following is correct?
- What is 2x 4x- 4x 6x- 6x 2x equal to?
- If x=- 3 4 and x is in the second quadrant, then what is the value of x x?
- What is the value of the following? cosec ( 7 6 ) ( 5 3 )
- What is the value of the following? 31^ 33^ 35^ 57^ 59^
- If f(x)= vmatrix 1 & x & x+1 2x & x(x-1) & x(x+1) 3x(x-1) & 2(x-1)(x-2) & x(x+1)(x-1) vmatrix then what is f(-1)+f(0)+f(1) equal...
- The equation ^ -1 x- ^ -1 x= 6 has
- What is the value of the following? ( 24^ + 66^ )( 24^ - 66^ )
- A chord subtends an angle 120° at the centre of a unit circle. What is the length of the chord?
- What is (1+ - cosec , )(1+ + ) equal to?
- What is 1+ ^2 1+ ^2 - ( 1- 1- )^2 equal to?
- If 7 +24 =25, then what is the value of ( + )?
- The shadow of a tower is found to be x metre longer, when the angle of elevation of the sun changes from 60° to 45°. If the...Not in JEE syllabus