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

If the minimum value of $\cos (\sinh (\log x)+\cosh (\log x))$ is $k$, then $\cosh (k+1)=$

A

$\frac{e+e^{-1}}{2}$

B

$\frac{e^2+e^{-2}}{2}$

C

$e$

D

1

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

If $\sinh x=\frac{-1}{2}$, then $\tanh 2 x=$

A

$\frac{-\sqrt{5}}{2}$

B

$-\sqrt{3}$

C

$\frac{-\sqrt{5}}{3}$

D

$\frac{-\sqrt{3}}{2}$

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

If the sides of a $\triangle A B C$ whose perimeter is 42 are in arithmetic progression, its circumradius is $\frac{65}{8}$ and $B

A

$\frac{4}{13}$

B

$\frac{28}{65}$

C

$\frac{56}{65}$

D

$\frac{14}{65}$

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

In a $\triangle A B C$, if $a=7, c=11, \cos A=\frac{17}{22}$, $\cos C=\frac{1}{14}$, then $b \tan \frac{B}{2} \tan \frac{C-A}{2}=$

A

18

B

14

C

2

D

9

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