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

$$\tan 2 \alpha \cdot \tan (30 Y-\alpha)+\tan 2 \alpha \cdot \tan (60 Y-\alpha)+\tan (60 \Upsilon-\alpha) \cdot \tan (30 \gamma-\alpha)$$ is equal to

A
$$\tan 3 \alpha$$
B
$$\tan ^2 2 \alpha-\tan ^2 60 \gamma$$
C
1
D
0
2
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $$\sin \alpha - \cos \alpha = m$$ and $$\sin 2\alpha = n - {m^2}$$, where $$ - \sqrt 2 \le m \le \sqrt 2 $$, then n is equal to

A
0
B
1
C
2
D
$$-$$2
3
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

The value of $$x$$ satisfying the equation $$3 \operatorname{cosec} x=4 \sin x$$ are

A
$$\frac{\pi}{6}, \frac{\pi}{3}$$
B
$$\pm \frac{\pi}{6}$$
C
$$\pm \frac{\pi}{3}$$
D
$$\frac{\pi}{3}, \frac{\pi}{4}$$
4
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $$\tan ^{-1}\left[\frac{1}{1+1 \cdot 2}\right]+\tan ^{-1}\left[\frac{1}{1+2 \cdot 3}\right]+\ldots+\tan ^{-1} \left[\frac{1}{1+n(1+1)}\right]=\tan ^{-1}[x]$$, then $$x$$ is equal to

A
$$\frac{1}{n+1}$$
B
$$\frac{n}{n+1}$$
C
$$\frac{1}{n+2}$$
D
$$\frac{n}{n+2}$$
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12