1
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

$\int \frac{x^3}{x^4+3 x^2+2} d x=$

A

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

B

$\log \left(x^2+2\right)-2 \log \left(x^2+1\right)+C$

C

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

D

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

2
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

    If $\int \frac{d x}{\left(x^2+9\right) \sqrt{x^2+16}}=\frac{1}{3 \sqrt{7}} \tan ^{-1}\left(K \frac{x}{\sqrt{16+x^2}}\right)+c$, then $K=$

A

$\frac{\sqrt{7}}{3}$

B

$3 \sqrt{7}$

C

$\frac{3}{\sqrt{7}}$

D

$\frac{3}{7}$

3
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

$$ \mathop {\lim }\limits_{n \to \infty } \frac{1}{n^2}\left[e^{1 / n}+2 e^{2 / n}+3 e^{3 / n}+\ldots+2 n e^2\right]= $$

A

$e^2-1$

B

$e^2+1$

C

$2 e^2-2$

D

$2 e^2+1$

4
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Let $m, n, p, q$ be four positive integers. If

$$ \begin{aligned} & \int_0^{2 \pi} \sin ^m x \cos ^n x d x=4 \int_0^{\pi / 2} \sin ^m x \cos ^n x d x \int_0^{2 \pi} \sin ^p x \cos ^n x d x=0 \\ & \int_0^\pi \sin ^p x \cos ^q x d x=0, a=m+n+p \text { and } b=m+n+q, \text { then } \end{aligned} $$

A

$a$ is even number and $b$ is odd number

B

$a$ is odd number and $b$ is even number

C

Both $a$ and $b$ are even numbers

D

Both $a$ and $b$ are odd numbers

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