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

If $y=f(\cosh x)$ and $f^{\prime}(x)=\log \left(x+\sqrt{x^2-1}\right)$, then $\frac{d^2 y}{d x^2}=$

A

$\sinh x+x \cosh x$

B

$x \sinh x$

C

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

D

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

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

If $\left(x^2-3 x+2\right)^{\frac{y}{x^{2-1}}}=x+2$, then $\left(\frac{d y}{d x}\right)_{x=0}=$

A

2

B

-2

C

1

D

-1

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

If $x=\frac{t^2}{1+t^5}, y=\frac{2 t^3}{1+t^5}$ and $t \neq-1$ is a perimeter, then $\frac{d y}{d x}=$

A

$\frac{2\left(3+2 t^5\right)}{\left(2-3 t^5\right)}$

B

$\frac{2 t\left(3-2 t^5\right)}{\left(2-3 t^5\right)}$

C

$\frac{2 t\left(3-2 t^5\right)}{\left(2+3 t^5\right)}$

D

$\frac{2\left(3+2 t^5\right)}{\left(2+3 t^5\right)}$

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

The acute angle between the curves $y=3 x^2-2 x-1$ and $y=x^3-1$ at their point of intersection which lies in the first quadrant is

A

$\tan ^{-1}\left(\frac{2}{121}\right)$

B

$\tan ^{-1}(2)$

C

$\tan ^{-1}\left(\frac{1}{13}\right)$

D

$\frac{\pi}{2}$

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