NDA questions
2295 published questions with worked solutions.
- For how many quadratic equations, the sum of roots is equal to the product of roots?
- Consider the following statements : 1. The set of all irrational numbers between 2 and 5 is an infinite set. 2. The set of all...
- Let p, q (p>q) be the roots of the quadratic equation x^2+bx+c=0 where c>0. If p^2+q^2-11pq=0, then what is p-q equal to?
- What is the diameter of a circle inscribed in a regular polygon of 12 sides, each of length 1 cm?
- Let A= 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 and let f:A N be defined by f(x)= the highest prime factor of x. How many elements are...
- Let R be a relation from N to N defined by R= (x, y) : x, y N and x^2=y^3 . Which of the following are **not** correct? 1. (x, x)...
- Consider the following : 1. A B=A C B=C 2. A B=A C B=C Which of the above is/are correct?
- What is the value of cosec (- 73 3 )?
- What is the value of ( 5 17 )+ ( 7 17 )+2 ( 11 17 ) ( 17 )?
- What is the value of ( 3 8 )?
- What is ^ -1 ( cosec ^ -1 2) equal to?
- In a triangle ABC, a=4, b=3, c=2. What is 3C equal to?
- What is 36^ - 72^ equal to?
- If x= 25 24 and x lies in the fourth quadrant, then what is the value of x+ x?
- What is the value of ^2165^ + ^2165^ ?
- What is the value of (2n + 5 6 ) (2n - 5 6 ), where n Z?
- If 1+2( x+ x)( x- x)=0 where 0<x<360^ , then how many values does x take?
- Consider the following statements in respect of the line passing through origin and inclining at an angle of 75^ with the...
- If P(3, 4) is the mid-point of a line segment between the axes, then what is the equation of the line?
- The base AB of an equilateral triangle ABC with side 8 cm lies along the y-axis such that the mid-point of AB is at the origin...