NDA questions
2827 published questions with worked solutions.
- If y=x+x^2+x^3+ up to infinite terms, where x<1, then which one of the following is correct?
- If and are the roots of the equation 3x^2+2x+1=0, then the equation whose roots are + ^ -1 and + ^ -1 is
- The value of 1 _3e + 1 _3e^2 + 1 _3e^4 + up to infinite terms is
- A tea party is arranged for 16 people along two sides of a long table with eight chairs on each side. Four particular men wish to...
- The system of equations kx+y+z=1, x+ky+z=k and x+y+kz=k^2 has no solution if k equals
- If 1 3+2 3^2+3 3^3+ +n 3^n= (2n-1)3^a+b 4 then a and b are respectively
- In PQR, R= 2 . If ( P 2 ) and ( Q 2 ) are the roots of the equation ax^2+bx+c=0, then which one of the following is correct?
- If |z- 4 z |=2, then the maximum value of |z| is equal to
- The angle of elevation of a stationary cloud from a point 25 m above a lake is 15^ and the angle of depression of its image in...Not in JEE syllabus
- The value of 9^ - 27^ - 63^ + 81^ is equal to
- The value of 3 , cosec ,20^ - 20^ is equal to
- Angle is divided into two parts A and B such that A-B=x and A : B=p : q. The value of x is equal to
- The value of ^ -1 ( 3 5 )+ ^ -1 ( 1 7 ) is equal to
- The angles of elevation of the top of a tower from the top and foot of a pole are respectively 30^ and 45^ . If h_T is the height...
- In a triangle ABC, a-2b+c=0. The value of ( A 2 ) ( C 2 ) isNot in JEE syllabus
- 1+ A =- ( A 2 + A 2 ) is true if
- In triangle ABC, if ^2A+ ^2B+ ^2C ^2A+ ^2B+ ^2C =2 then the triangle isNot in JEE syllabus
- The principal value of ^ -1 x lies in the interval
- The points (a, b), (0, 0), (-a, -b) and (ab, b^2) are
- The length of the normal from origin to the plane x+2y-2z=9 is equal to