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1
AP EAPCET 2022 - 5th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$\sin ^2 \frac{2 \pi}{3}+\cos ^2 \frac{5 \pi}{6}-\tan ^2 \frac{3 \pi}{4}=$$

A
0
B
1/2
C
1
D
1/3
2
AP EAPCET 2022 - 4th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

A true statement among the following identities is

A
$$\sin 5 \theta=16 \cos ^4 \theta \sin \theta-12 \cos ^2 \theta \sin \theta+\sin \theta$$
B
$$\sin 5 \theta=16 \cos ^4 \theta-12 \cos ^2 \theta+1$$
C
$$\sin 5 \theta=16 \cos ^4 \theta \sin \theta+12 \cos ^2 \theta \sin \theta-\sin \theta$$
D
$$\sin 5 \theta=16 \cos ^4 \theta \sin \theta+12 \cos ^2 \theta \sin \theta+\sin \theta$$
3
AP EAPCET 2022 - 4th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

If $$A+B+C=\pi, \cos B=\cos A \cos C$$, then $$\tan A \tan C=$$

A
0
B
1
C
2
D
$$\frac{1}{2}$$
4
AP EAPCET 2022 - 4th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

The value of $$\tan \left(\frac{7 \pi}{8}\right)$$ is

A
$$\sqrt{2}-1$$
B
$$1-\sqrt{2}$$
C
$$1+\sqrt{2}$$
D
$$\frac{1}{1+\sqrt{2}}$$
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