NDA questions
2827 published questions with worked solutions.
- 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?
- Consider the following statements : 1. For an equation of a line, x +y =p, in normal form, the length of the perpendicular from...
- A circle is drawn on the chord of a circle x^2+y^2=a^2 as diameter. The chord lies on the line x+y=a. What is the equation of the...
- The sum of the focal distances of a point on an ellipse is constant and equal to the
- The equation 2x^2-3y^2-6=0 represents
- The points (1, 3) and (5, 1) are two opposite vertices of a rectangle. The other two vertices lie on the line y=2x+c. What is the...
- If the lines 3y+4x=1, y=x+5 and 5y+bx=3 are concurrent, then what is the value of b?
- What is the equation of the straight line which is perpendicular to y=x and passes through (3, 2)?
- The straight lines x+y-4=0, 3x+y-4=0 and x+3y-4=0 form a triangle, which is
- The circle x^2+y^2+4x-7y+12=0, cuts an intercept on y-axis equal to
- The centroid of the triangle with vertices A(2, -3, 3), B(5, -3, -4) and C(2, -3, -2) is the point