1
AP EAPCET 2021 - 20th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

Given, $$\frac{3 x-2}{(x+1)^2(x+3)}=\frac{A}{x+1} +\frac{B}{(x+1)^2}+\frac{C}{x+3}$$, then $$4 A+2 B+4 C$$ is equal to

A
5
B
$$-$$5
C
$$-$$3
D
3
2
AP EAPCET 2021 - 20th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$\int \frac{\sin \alpha}{\sqrt{1+\cos \alpha}} d \alpha$$ is equal to

A
$$-2 \sqrt{2} \cos \left(\frac{\alpha}{2}\right)+C$$
B
$$2 \sqrt{2} \cos \left(\frac{\alpha}{2}\right)+C$$
C
$$\sqrt{2} \cos \left(\frac{\alpha}{2}\right)+C$$
D
$$-\sqrt{2} \cos \left(\frac{\alpha}{2}\right)+C$$
3
AP EAPCET 2021 - 20th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $$\int \frac{\cos 4 x+1}{\cot x-\tan x}=k \cos 4 x+C$$, then $$k$$ is equal to

A
$$\frac{-1}{2}$$
B
$$\frac{-1}{8}$$
C
$$\frac{-1}{3}$$
D
$$\frac{-1}{5}$$
4
AP EAPCET 2021 - 20th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $$\int\left[\cos (x) \cdot \frac{d}{d x}(\operatorname{cosec}(x)] d x=f(x)+g(x)+c\right.$$ then $$f(x) \cdot g(x)$$ is equal to

A
$$x \cot (x)$$
B
$$x \tan (x)$$
C
$$x \cos (x)$$
D
1
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