1
AP EAPCET 2025 - 22nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

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

A

$-\sqrt{\frac{y-y^2}{x-x^2}}$

B

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

C

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

D

$-\sqrt{\frac{x-y}{x+y}}$

2
AP EAPCET 2025 - 22nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

If $y=\tan ^{-1}\left(\frac{x}{1+2 x^2}\right)+\tan ^{-1}\left(\frac{x}{1+6 x^2}\right)$, then $\frac{d y}{d x}=$

A

$\frac{4}{16 x^2+1}-\frac{3}{9 x^2+1}$

B

$\frac{3}{9 x^2+1}-\frac{1}{x^2+1}$

C

$\frac{3}{9 x^2+1}-\frac{2}{4 x^2+1}$

D

$\frac{1}{9 x^2+1}-\frac{1}{x^2+1}$

3
AP EAPCET 2025 - 22nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

If the tangent drawn at the point $\left(x_1, y_1\right), x_1, y_1 \in N$ on the curve $y=x^4-2 x^3+x^2+5 x$ passes through origin, then $x_1+y_1=$

A

5

B

4

C

7

D

6

4
AP EAPCET 2025 - 22nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which one of the following functions is monotonically increasing in its domain?

A

$f(x)=\log (1+x)-x+\frac{x^2}{2}$

B

$g(x)=2 \tan ^{-1} x-x-1$

C

$h(x)=4 \cos x+x$

D

$u(x)=\log (1+x)-\frac{x}{x+1}$