NDA questions
2827 published questions with worked solutions.
- The equations x+2y+3z=1, 2x+y+3z=2, 5x+5y+9z=4
- A= bmatrix x+y&y &x-y bmatrix , B= bmatrix 3 -2 bmatrix and C= bmatrix 4 -2 bmatrix . If AB=C, then what is A^2 equal to?
- If vmatrix x&y&0 0&x&y &0&x vmatrix =0, then which one of the following is correct?
- Consider the set A of all matrices of order 3 3 with entries 0 or 1 only. Let B be the subset of A consisting of all matrices...
- If A= bmatrix & - & bmatrix , then what is A^3 equal to?
- What is the order of [x y z] bmatrix a&h&g &b&f &f&c bmatrix bmatrix x bmatrix ?
- If A= bmatrix 0&1 1&0 bmatrix , then the value of A^4 is
- If A= 3 5 , where 450^ <A<540^ , then A 2 is equal to
- What is 1 10^ - 3 10^ equal to?
- From the top of a lighthouse, 100 m high, the angle of depression of a boat is ^ -1 ( 5 12 ). What is the distance between the...Not in JEE syllabus
- The maximum value of (x+ 6 )+ (x+ 6 ) in the interval (0, 2 ) is attained at
- If K= ( 18 ) ( 5 18 ) ( 7 18 ), then what is the value of K?
- The expression + + is equal to
- If =3 ( +2 ), then the value of ( + )+2 is equal to
- What is the value of 18^ ?
- Let x, y, z be positive real numbers such that x, y, z are in GP and ^ -1 x, ^ -1 y and ^ -1 z are in AP. Then which one of the...
- If ( + )=2 and ( - )=1, then (2 ) is equal to
- Consider the following for triangle ABC : 1. ( B+C 2 )= ( A 2 ) 2. ( B+C 2 )= ( A 2 ) 3. (B+C)= A 4. (B+C)=- A Which of the above...
- If - cosec , = 4 3 , then what is ( - ) equal to?
- If a vertex of a triangle is (1, 1) and the midpoints of two sides of the triangle through this vertex are (-1, 2) and (3, 2),...