If $\displaystyle \int \frac{\tan x}{1+\tan x+\tan^{2}x},dx = x - \frac{K}{\sqrt{A}}\tan^{-1}\left(\frac{K\tan x + 1}{\sqrt{A}}\right) + C,\ (C\ \text{is a constant of integration})$ then the ordered pair $(K,A)$ is equal to :

1

If $f(x) = \displaystyle\int_{0}^{x} t(\sin x - \sin t),dt$ then :

Topic: JEE Main 2018 (16 April Morning Shift)

1

If $x = \sqrt{2^{\csc^{-1} t}}$ and $y = \sqrt{2^{\sec^{-1} t}}$ $(\lvert t \rvert \ge 1)$, then $\dfrac{dy}{dx}$ is eq…

Topic: JEE Main 2018 (16 April Morning Shift)

2

Let A = $\left[ {\matrix{ 1 & 0 & 0 \cr 1 & 1 & 0 \cr 1 & 1 & 1 \cr } } \right…

Topic: JEE Main 2018 (16 April Morning Shift)

3

If the function $f$ defined as $f(x) = \dfrac{1}{x} - \dfrac{kx - 1}{e^{2x} - 1}, ; x \ne 0$, is continuous at $x = 0$,…

Topic: JEE Main 2018 (16 April Morning Shift)

4

Let $M$ and $m$ be respectively the absolute maximum and the absolute minimum values of the function $f(x) = 2x^{3} - 9…

Topic: JEE Main 2018 (16 April Morning Shift)

5

Let $\dfrac{1}{x_1},\dfrac{1}{x_2},\ldots,\dfrac{1}{x_n}$ $(x_i\ne0\text{ for }i=1,2,\ldots,n)$ be in A.P. such that $x…

Topic: JEE Main 2018 (16 April Morning Shift)

6

$\displaystyle\lim_{x\to0} \dfrac{(27+x)^{1/3}-3}{9-(27+x)^{2/3}}$ equals :

Topic: JEE Main 2018 (16 April Morning Shift)

7

The number of numbers between $2000$ and $5000$ that can be formed with the digits $0,1,2,3,4$ (repetition of digits is…

Topic: JEE Main 2018 (16 April Morning Shift)

8

If $\displaystyle \int \frac{\tan x}{1+\tan x+\tan^2 x},dx = x - \frac{K}{\sqrt{A}}\tan^{-1}!\left(\frac{K\tan x + 1}{\…

Topic: JEE Main 2018 (16 April Morning Shift)

9

Let $M$ and $m$ be respectively the absolute maximum and the absolute minimum values of the function $f(x)=2x^{3}-9x^{2…

Topic: JEE Main 2018 (16 April Morning Shift)

10

If the function $f$ defined as $f(x)=\dfrac{1}{x}-\dfrac{kx-1}{e^{2x}-1},\ x\ne0$, is continuous at $x=0$, then the ord…

Topic: JEE Main 2018 (16 April Morning Shift)