1
CBSE 12th Mathematics Delhi Set 1 - 2024
MCQ (Single Correct Answer)
+1
-0

Derivative of $e^{\sin ^2 x}$ with respect to $\cos x$ is

A
$\sin x e^{\sin ^2 x}$
B
$\cos x e^{\sin ^2 x}$
C
$-2 \cos x e^{\sin ^2 x}$
D
$-2 \sin ^2 x \cos x e^{\sin ^2 x}$
2
CBSE 12th Mathematics Delhi Set 1 - 2024
MCQ (Single Correct Answer)
+1
-0

The function $f(x)=\frac{x}{2}+\frac{2}{x}$ has a local minima at $x$ equal to

A
2
B
1
C
0
D
$-$2
3
CBSE 12th Mathematics Delhi Set 1 - 2024
MCQ (Single Correct Answer)
+1
-0

Given a curve $y=7 x-x^3$ and $x$ increases at the rate of 2 units per second. The rate at which the slope of the curve is changing, when $x=5$ is

A
$-60$ units/s
B
$60$ units $/ \mathrm{s}$
C
$- 70$ units/s
D
$-140$ units $/ \mathrm{s}$
4
CBSE 12th Mathematics Delhi Set 1 - 2024
MCQ (Single Correct Answer)
+1
-0

$\int \frac{1}{x(\log x)^2} d x$ is equal to

A
$2 \log (\log x)+c$
B
$-\frac{1}{\log x}+c$
C
$\frac{(\log x)^3}{3}+c$
D
$\frac{3}{(\log x)^3}+c$
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