1
COMEDK 2026 Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$ \int e^{2 x} \cos (5 x+3) d x= $$

A

$$ \frac{e^{2 x}}{29}[2 \sin (5 x+3)+5 \cos (5 x+3)]+C $$

B

$$ \frac{e^{2 x}}{29}[2 \sin (5 x+3)+5 \cos (5 x+3)]+C $$

C

$$ \frac{e^{2 x}}{29}[2 \cos (5 x+3)+5 \sin (5 x+3)]+C $$

D

$$ \frac{e^{2 x}}{29}[5 \cos (5 x+3)-2 \sin (5 x+3)]+C $$

2
COMEDK 2026 Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$ \int \sqrt{2 a x-x^2} d x= $$

A

$$ \frac{x-a}{2} \sqrt{2 a x-x^2}+\frac{a^2}{2} \cos ^{-1}\left(\frac{x-a}{a}\right)+C $$

B

$$ \frac{a^2}{2} \sqrt{2 a x-x^2}+\frac{x-a}{2} \sin ^{-1}\left(\frac{x-a}{a}\right)+C $$

C

$$ \frac{x-a}{2} \sqrt{2 a x-x^2}+\frac{a^2}{2} \sin ^{-1}\left(\frac{x-a}{a}\right)+C $$

D

$$ \frac{a^2}{2} \sqrt{2 a x-x^2}+\frac{x-a}{2} \cos ^{-1}\left(\frac{x-a}{a}\right)+C $$

3
COMEDK 2026 Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$ \int \frac{x+1}{x\left(1+x e^x\right)} d x= $$

A

$$ \log \left|c x e^x\left(1+x e^x\right)\right| $$

B

$$ \log \left|c x e^x\left(1+x e^x\right)\right| $$

C

$$ \log \left|\frac{c\left(1+x e^x\right)}{x e^x}\right| $$

D

$$ \log \left|\frac{c x e^x}{1+x e^x}\right| $$

4
COMEDK 2026 Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$ \int \frac{e^{\log \left(1+\frac{1}{x^2}\right)}}{x^2+\frac{1}{x^2}} d x= $$

A

$$ \frac{1}{\sqrt{2}} \tan ^{-1}\left(\frac{x^2+1}{x \sqrt{2}}\right)+C $$

B

$$ \frac{1}{\sqrt{2}} \tan ^{-1}\left(\frac{x^2-1}{\sqrt{2} x}\right)+C $$

C

$$ -\frac{1}{\sqrt{2}} \tan ^{-1}\left(x-\frac{1}{x}\right)+C $$

D

$$ \frac{1}{\sqrt{2}} \tan ^{-1}\left(x-\frac{1}{x}\right)+C $$

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