NEW
New Website Launch
Experience the best way to solve previous year questions with mock tests (very detailed analysis), bookmark your favourite questions, practice etc...
1

IIT-JEE 1999

MCQ (Single Correct Answer)
The harmonic mean of the roots of the equation $$\left( {5 + \sqrt 2 } \right){x^2} - \left( {4 + \sqrt 5 } \right)x + 8 + 2\sqrt 5 = 0$$ is
A
2
B
4
C
6
D
8
2

IIT-JEE 1998

MCQ (Single Correct Answer)
If $$x > 1,y > 1,z > 1$$ are in G.P., then $${1 \over {1 + In\,x}},{1 \over {1 + In\,y}},{1 \over {1 + In\,z}}$$ are in
A
A.P.
B
H.P.
C
G.P.
D
None of these
3

IIT-JEE 1998

MCQ (Single Correct Answer)
Let $${T_r}$$ be the $${r^{th}}$$ term of an A.P., for $$r=1, 2, 3, ....$$ If for some positive integers $$m$$, $$n$$ we have
$${T_m} = {1 \over n}$$ and $${T_n} = {1 \over m},$$ then $${T_n} = {1 \over m},$$ equals
A
$${1 \over {mn}}$$
B
$${1 \over {mn}} + {1 \over n}$$
C
$$1$$
D
$$0$$
4

IIT-JEE 1998

MCQ (Single Correct Answer)
Let $$n$$ be an odd integer. If $$\sin n\theta = \sum\limits_{r = 0}^n {{b_r}{{\sin }^r}\theta ,} $$ for every value of $$\theta ,$$ then
A
$${b_0} = 1,\,b = 3$$
B
$${b_0} = 0,\,{b_1} = n$$
C
$${b_0} = - 1,\,{b_1} = n$$
D
$${b_0} = 0,\,{b_1} = {n^2} - 3n + 3$$

Joint Entrance Examination

JEE Main JEE Advanced WB JEE

Graduate Aptitude Test in Engineering

GATE CSE GATE ECE GATE EE GATE ME GATE CE GATE PI GATE IN

Medical

NEET

CBSE

Class 12