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

If $y=\sqrt{\log \left(x^2+1\right)+\sqrt{\log \left(x^2+1\right)+\sqrt{\log \left(x^2+1\right)+\ldots+\infty}}, \text {, } 100.00}$, $|x|<1$, then $\frac{d y}{d x}=$

A

$\frac{x^2+1}{2 y-1}$

B

$\frac{2 x}{2 y-1}$

C

$\frac{1}{\left(x^2+1\right)(2 y-1)}$

D

$\frac{2 x}{\left(x^2+1\right)(2 y-1)}$

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

If $x=\sqrt{1-\tan y}$, then $\frac{d y}{d x}=$

A

$\frac{2 x}{x^4+2 x^2+2}$

B

$-\frac{2 x}{x^4-2 x^2+2}$

C

$\frac{2 x}{x^4-2 x^2+2}$

D

$-\frac{2 x}{x^4+2 x^2+2}$

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

If $y=\sec ^{-1} x$, then $\frac{d^2 y}{d x^2}=$

A

$\frac{1-2 x^2}{x|x|\left(x^2-1\right)^{\frac{3}{2}}}$

B

$\frac{1-x^2}{x^2\left(x^2-1\right)^{\frac{3}{2}}}$

C

$\frac{1-x^2}{-x^2\left(x^2-1\right)^{\frac{3}{2}}}$

D

$\frac{1+2 x^2}{x|x|\left(x^2-1\right)^{\frac{3}{2}}}$

4
TG EAPCET 2025 (Online) 3rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

If $x=\sin 2 \theta \cos 3 \theta, y=\sin 3 \theta \cos 2 \theta$, then $\frac{d y}{d x}=$

A

$\frac{2 \cos 5 \theta+\sin 3 \theta \sin 2 \theta}{2 \cos 5 \theta-\cos 3 \theta \cos 2 \theta}$

B

$\frac{2 \cos 5 \theta-\sin 3 \theta \sin 2 \theta}{2 \cos 5 \theta+\cos 3 \theta \cos 2 \theta}$

C

$\frac{2 \cos 5 \theta+\cos 3 \theta \cos 2 \theta}{2 \cos 5 \theta-\sin 3 \theta \sin 2 \theta}$

D

$\frac{2 \cos 5 \theta-\sin 3 \theta \sin 2 \theta}{2 \cos 5 \theta-\cos 3 \theta \cos 2 \theta}$

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