1
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+2
-0

$$\int \frac{\log \left(x^2+a^2\right)}{x^2} d x=$$

A
$$\frac{-\log \left(x^2+\mathrm{a}^2\right)}{x}+\frac{1}{\mathrm{a}} \tan ^{-1} \frac{x}{\mathrm{a}}+\mathrm{c}$$, where $$\mathrm{c}$$ is a constant of integration.
B
$$\frac{-\log \left(x^2+\mathrm{a}^2\right)}{x}+\frac{2}{\mathrm{a}} \tan ^{-1} \frac{x}{\mathrm{a}}+\mathrm{c}$$, where $$\mathrm{c}$$ is a constant of integration.
C
$$\frac{\log \left(x^2+\mathrm{a}^2\right)}{x^2}-\frac{1}{\mathrm{a}} \tan ^{-1} \frac{x}{\mathrm{a}}+\mathrm{c}$$, where $$\mathrm{c}$$ is a constant of integration.
D
$$\frac{\log \left(x^2+\mathrm{a}^2\right)}{x^2}-\frac{2}{\mathrm{a}} \tan ^{-1} \frac{x}{\mathrm{a}}+\mathrm{c}$$, where $$\mathrm{c}$$ is a constant of integration.
2
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+2
-0

If $$\int x^5 e^{-4 x^3} \mathrm{~d} x=\frac{1}{48} \mathrm{e}^{-4 x^3} \mathrm{f}(x)+\mathrm{c}$$, where $$\mathrm{c}$$ is a constant of integration, then $$\mathrm{f}(x)$$ is given by

A
$$4 x^3+1$$
B
$$-4 x^3-1$$
C
$$-2 x^3-1$$
D
$$-2 x^3+1$$
3
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+2
-0

If $$\mathrm{f}(x)=\int \frac{x^2 \mathrm{~d} x}{\left(1+x^2\right)\left(1+\sqrt{1+x^2}\right)}$$ and $$\mathrm{f}(0)=0$$, then $$\mathrm{f}(1)$$ is

A
$$\log (1+\sqrt{2})$$
B
$$\log (1+\sqrt{2})-\frac{\pi}{4}$$
C
$$\log (1+\sqrt{2})+\frac{\pi}{4}$$
D
$$\log (1-\sqrt{2})$$
4
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+2
-0

$$\int \frac{1}{\cos ^3 x \sqrt{\sin 2 x}} d x=$$

A
$$\sqrt{2}\left(\sqrt{\tan x}+\frac{1}{5}(\tan x)^{\frac{5}{2}}\right)+\mathrm{c}$$, where $$\mathrm{c}$$ is a constant of integration.
B
$$\left(\sqrt{\tan x}+\frac{2}{5}(\tan x)^{\frac{5}{2}}\right)+c$$, where c is a constant of integration.
C
$$\frac{1}{\sqrt{2}}\left(\sqrt{\tan x}+\frac{2}{5}(\tan x)^{\frac{5}{2}}\right)+\mathrm{c}$$, where $$\mathrm{c}$$ is a constant of integration.
D
$$2\left(\sqrt{\tan x}+\frac{1}{5}(\tan x)^{\frac{5}{2}}\right)+\mathrm{c}$$, where $$\mathrm{c}$$ is a constant of integration.
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