1
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

$$\frac{d}{d x}\left[\tan ^{-1}\left(\frac{\cos x}{1+\sin x}\right)\right]$$ is equal to

A
$$\frac{1}{2}$$
B
$$\frac{-1}{2}$$
C
1
D
$$-$$1
2
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

If $$x^2+y^2=1$$, then

A
$$y\left(y^{\prime \prime}\right)-4\left(y^{\prime}\right)^2+1=0$$
B
$$y\left(y^{\prime \prime}\right)+\left(y^{\prime}\right)^2+1=0$$
C
$$y\left(y^{\prime \prime}\right)-\left(y^{\prime}\right)^2-1=0$$
D
$$y\left(y^{\prime \prime}\right)+2\left(y^{\prime}\right)^2+1=0$$
3
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $$y=x+\frac{1}{x}$$, then which among the following holds?

A
$$x^2 y^{\prime}+x y=0$$
B
$$x^2 y^{\prime}+x y+2=0$$
C
$$x^2 y^{\prime}-x y+2=0$$
D
$$x^2 y^{\prime}+x y-2=0$$
4
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $$3 \sin x y+4 \cos x y=5$$, then $$\frac{d y}{d x}$$ is equal to

A
$$\frac{3 \sin x y+4 \cos x y}{3 \cos x y-4 \sin x y}$$
B
$$\frac{3 \cos x y+4 \sin x y}{4 \cos x y-3 \sin x y}$$
C
$$\frac{-y}{x}$$
D
$$\frac{x}{y}$$
AP EAPCET Subjects
EXAM MAP