NDA questions
2295 published questions with worked solutions.
- What is 2 1+ ^2 equal to?
- If ( - ), and ( + ) are in AP, where 1, then what is the value of ^2 + ?
- If A+B+C=180^ , then what is 2A- 2B- 2C equal to?
- A is an angle in the fourth quadrant. It satisfies the trigonometric equation 3(3- ^2A- A)^2=1. Which one of the following is a...
- What is/are the solution(s) of the trigonometric equation cosec ,x+ x= 3 , where 0<x<2 ?
- If = 8 , then what is the value of (2 +1)^ 10 (2 2 -1)^ 10 (2 -1)^ 10 (2 4 -1)^ 10 ?
- If and (0< < < ) are the roots of the quadratic equation 4x^2-3=0, then what is the value of ?
- Consider the following values of x : 1. 8 2. -4 3. 1 6 4. - 1 4 Which of the above values of x is/are the solution(s) of the...
- If the second term of a GP is 2 and the sum of its infinite terms is 8, then the GP is
- What is the sum of all three-digit numbers that can be formed using all the digits 3, 4 and 5, when repetition of digits is...
- If A= ^2 + ^4 , then for all real , which one of the following is correct?
- The equation of a circle whose end points of a diameter are (x_1, y_1) and (x_2, y_2) is
- The second degree equation x^2+4y^2-2x-4y+2=0 represents
- The angle between the two lines lx+my+n=0 and l'x+m'y+n'=0 is given by ^ -1 . What is equal to?
- Consider the following statements : 1. The distance between the lines y=mx+c_1 and y=mx+c_2 is |c_1-c_2| 1+m^2 . 2. The distance...
- What is the equation of straight line passing through the point of intersection of the lines x 2 + y 3 =1 and x 3 + y 2 =1, and...
- What is the distance of the point (2, 3, 4) from the plane 3x-6y+2z+11=0?
- Coordinates of the points O, P, Q and R are respectively (0, 0, 0), (4, 6, 2m), (2, 0, 2n) and (2, 4, 6). Let L, M, N and K be...
- The line x-1 2 = y-2 3 = z-3 4 is given by
- Consider the following statements : 1. The angle between the planes 2x-y+z=1 and x+y+2z=3 is 3 . 2. The distance between the...