MCQ
int "e"^ $x$ int $[(2-\sin 2 x) /(1-\cos 2 x)]^{\prime} d x= ______.
  • A
    $e^x \cot +c$
  • B
    $-e^x \tan 2 x+c$
  • $-e^{ x } \cot + c$
  • D
    $e ^{ x } \tan + c$

Answer

Correct option: C.
$-e^{ x } \cot + c$
C

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

In the given diagram represents the

Image

Breasts are the modified ______ glands.
The order of the reaction occurring by following mechanism should be:

(i) $\ce{A2 + B2 -> AB2 + A (slow)}$

(ii) $\ce{A + B2 -> AB2 (fast)}$

The rate and the rate constants of the reaction, $\ce{A + 2B -> C + D}$ are $8 \times 10^{-3} mol dm ^{-3} s^{-1}$ and $2 \times 10^{-3} s^{-1}$ respectively. The concentrations of A and B are 4 mol $dm^{-3}$ each. The overall order of the reaction is ____________.
In a quadrilateral ABCD, M and N are the mid-points of the sides AB and CD respectively. If AD + BC = tMN, then t = ____________.
Identify the catalyst $X$ used in the following reaction.
$CH _3 CH _2 Br +2[ H ] \xrightarrow{ X } CH _3- CH _3+ HBr$
For photoelectric emission from certain metal, the cut-off frequency is v. If radiation of frequency 2v impinges on the metal plate, the maximum possible velocity of the emitted electron will be (m is the electron mass) ____________.
In the equation: log S = log C + Z log A , S= species richness; Z = slope of line (regression coefficient); A = area; C = Y intercept. For smaller area, the value of Z ranges from ____________.
The degree of ionization of 0.10 M solution of a weak monobasic acid is 4%. Find the value of $K_a$.
Two strings A and B of same material are stretched by same tension. The radius of the string A is double the radius of string B. Transverse wave travels on string A with speed ' $V_A$ ' and on string $B$ with speed ' $V_B$ '.. The ratio $`"V"_"A"/"V"_"B"`$ is ______.