1
TS EAMCET 2022 (Online) 19th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

$$ \cos ^2 76^{\circ}+\sin ^2 46^{\circ}+\sin 76^{\circ} \cos 46^{\circ}= $$

A

$\frac{3}{4}$

B

1

C

$\frac{5}{4}$

D

2

2
TS EAMCET 2022 (Online) 19th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

If $x=\log _e\left(\cot \left(\frac{\pi}{4}+\theta\right)\right)$, then $\lim _{\theta \rightarrow 0} \frac{\theta}{(\sinh x)(\cosh x)}=$

A

0

B

$-\frac{1}{2}$

C

-2

D

1

3
TS EAMCET 2022 (Online) 19th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

If $e^{i t}=\cos t+i \sin t$ and $e^{-i t}=\cos t-i \sin t$, then $\cosh (x+i y)-\cosh (x-i y)=$

A

$2 \sinh x \sinh y$

B

$2 i \sinh x \cos y$

C

$2 \cosh x \cos y$

D

$2 i \sinh x \sin y$

4
TS EAMCET 2022 (Online) 19th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a $\triangle A B C, A D$ and $B E$ are medians. If $A D=4, \angle D A B=\frac{\pi}{6}$ and $\angle A B E=\frac{\pi}{3}$, then the area of $\triangle A B C$ is

A

$\frac{14}{3 \sqrt{3}}$

B

$\frac{28}{3 \sqrt{3}}$

C

$\frac{11}{3 \sqrt{3}}$

D

$\frac{32}{3 \sqrt{3}}$

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