1
KCET 2021
MCQ (Single Correct Answer)
+1
-0

$$\cos \left[\cot ^{-1}(-\sqrt{3})+\frac{\pi}{6}\right]$$ is equal to

A
0
B
1
C
$$\frac{1}{\sqrt{2}}$$
D
$$-1$$
2
KCET 2021
MCQ (Single Correct Answer)
+1
-0

$$\tan ^{-1}\left[\frac{1}{\sqrt{3}} \sin \frac{5 \pi}{2}\right] \sin ^{-1}\left[\cos \left(\sin ^{-} \frac{\sqrt{3}}{2}\right)\right]$$ is equal to

A
$$\left(\frac{\pi}{6}\right)^2$$
B
$$\frac{\pi}{6}$$
C
$$\frac{\pi}{3}$$
D
$$\pi$$
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