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

Given $A=\left(\begin{array}{ll}1 & 2 \\ 2 & 3\end{array}\right)$ and $f(x)=x^2-2 x-3$ then $f(A)$ is:

A

Identity matrix

B

Skew symmetric matrix

C

Null matrix

D

Symmetric Matrix

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

The value of $\mathop {\lim }\limits_{x \to 3}\left[\frac{1}{x-3}+\frac{9 x}{27-x^3}\right]$ is:

A

$\frac{1}{2}$

B

1

C

2

D

0

4
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

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