NDA questions
2295 published questions with worked solutions.
- For how many values of k, is the matrix bmatrix 0&k&4 -k&0&-5 -k&k&-1 bmatrix singular?
- What is the value of 1 10 _51024- _510+ 1 5 _53125?
- If x= _c(ab), y= _a(bc), z= _b(ca), then which of the following is correct?
- Let A= bmatrix x+y&y 2x&x-y bmatrix , B= bmatrix 2 -1 bmatrix and C= bmatrix 3 2 bmatrix . If AB=C, then what is the value of the...
- If 1 5 x 4 5, then which one of the following is correct?
- Let S= 1, 2, 3, . A relation R on S S is defined by xRy if _ax> _ay when a= 1 2 . Then the relation is
- What is the value of the determinant vmatrix i&i^2&i^3 ^4&i^6&i^8 ^9&i^ 12 &i^ 15 vmatrix where i= -1 ?
- Let A= bmatrix a&h&g &b&f &f&c bmatrix and B= bmatrix x bmatrix , then what is AB equal to?
- What is the number of ways in which the letters of the word 'ABLE' can be arranged so that the vowels occupy even places?
- What is the maximum number of points of intersection of 5 non-overlapping circles?
- If = 17^ - 17^ 17^ + 17^ , then what is the value of ?
- A and B are positive acute angles such that 2B=3 ^2A and 3 2A=2 2B. What is the value of (A+2B)?
- What is 3x+ 3x+4 ^3x-3 x+3 x-4 ^3x equal to?
- The value of ordinate of the graph of y=2+ x lies in the interval
- What is the value of 8 10^ 20^ 40^ ?
- What is the value of 48^ - 12^ ?
- Consider the following statements : 1. If ABC is a right-angled triangle, right-angled at A and if B= 1 3 , then cosec ,C=3. 2....
- Consider the following statements : 1. If in a triangle ABC, A=2B and b=c, then it must be an obtuse-angled triangle. 2. There...
- If x+ y= y- x, where 0<y<x< 2 , then what is ( x-y 2 ) equal to?
- If A is a matrix of order 3 5 and B is a matrix of order 5 3, then the order of AB and BA will respectively be