1
TS EAMCET 2022 (Online) 20th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $A+B+C=\frac{\pi}{2}$, then $\sqrt{2} \cos \left(\frac{\pi}{4}-A\right)$

$$ +\sqrt{2} \cos \left(\frac{\pi}{4}-B\right)+\sqrt{2} \cos \left(\frac{\pi}{4}-C\right)+1= $$

A

$4 \sqrt{2} \cos \frac{A}{2} \cos \frac{B}{2} \cos \frac{C}{2}$

B

$4 \cos \frac{A}{2} \cos \frac{B}{2} \cos \frac{C}{2}$

C

$4 \sin \frac{A}{2} \sin \frac{B}{2} \cos \frac{C}{2}$

D

$4 \sqrt{2} \sin \frac{A}{2} \sin \frac{B}{2} \cos \frac{C}{2}$

2
TS EAMCET 2022 (Online) 20th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $\sinh x=\tan A$, then $|\tanh x|=$

A

$|\sin A|$

B

$|\cos A|$

C

$|\sec A|$

D

$|\operatorname{cosec} A|$

3
TS EAMCET 2022 (Online) 20th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$ \frac{\sinh (x+y)+\sinh (x-y)}{\cosh (x+y)-\cosh (x-y)}= $$

A

$\tanh y$

B

coth $y$

C

$\tanh x \operatorname{coth} y$

D

$\tanh y \operatorname{coth} x$

4
TS EAMCET 2022 (Online) 20th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $a, b$ and $c$ are the sides of $a \triangle A B C$ and $\left|\begin{array}{lll}b & 1 & a \\ a & 1 & c \\ c & 1 & b\end{array}\right|=0$, then $2(\cos A+\cos B+\cos C)=$

A

1

B

2

C

3

D

4

TS EAMCET Papers

All year-wise previous year question papers