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

The differential equation of the family of circles passing through the origin and having centre on $X$-axis is

A

$\left(y^2+x^2\right) d x-2 y d y=0$

B

$\left(y^2-x^2\right) d x-2 x y d y=0$

C

$\left(y^2-x^2\right) d x+2 y d y=0$

D

$\left(y^2+x^2\right) d x+2 y d y=0$

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

The general solution of the differential equation $\frac{d y}{d x}=\frac{x+y}{x-y}$ is

A

$y-x=c x^2$

B

$\tan ^{-1}\left(\frac{y}{x}\right)=\log \left(c x \sqrt{x^2+y^2}\right)$

C

$x+y=c x^2$

D

$\tan ^{-1}\left(\frac{y}{x}\right)=\log \left(c \sqrt{x^2+y^2}\right)$

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

The general solution of the differential equation $\frac{d y}{d x}+\frac{\sec x}{\cos x+\sin x} y=\frac{\cos x}{1+\tan x}$ is

A

$(\cos x+\sin x) y=\sin x+C$

B

$(\cos x+\sin x) y=\cos x+C$

C

$(1+\tan x) y=\cos x+C$

D

$\sec x(\cos x+\sin x) y=\sin x+C$

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

The number of significant figures in the simplification of $\frac{0.501}{0.05}(0.312-0.03)$ is

A

1

B

3

C

2

D

5