1
AP EAPCET 2025 - 26th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

$$ \tan \left(2 \tan ^{-1}\left(\frac{1}{3}\right)+\tan ^{-1}\left(\frac{1}{7}\right)\right)= $$

A

$\frac{1}{\sqrt{3}}$

B

$\sqrt{3}$

C

1

D

$3 / 7$

2
AP EAPCET 2025 - 26th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

$$ \tanh ^{-1}\left(\frac{1}{3}\right)+\operatorname{coth}^{-1}(3)= $$

A

$\operatorname{sech}^{-1}\left(\frac{1}{3}\right)$

B

$\operatorname{cosech}^{-1}\left(\frac{1}{3}\right)$

C

$\cosh ^{-1}\left(\frac{4}{3}\right)$

D

$\sinh ^{-1}\left(\frac{3}{4}\right)$

3
AP EAPCET 2025 - 26th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a $\triangle A B C$, if $A=30^{\circ}$ and $\frac{b}{(\sqrt{3}+1)^2+2(\sqrt{2}-1)} =\frac{c}{(\sqrt{3}+1)^2-2(\sqrt{2}-1)}$, then $B$

A

$60^{\circ}$

B

$97.5^{\circ}$

C

$75^{\circ}$

D

$52.5^{\circ}$

4
AP EAPCET 2025 - 26th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In $\triangle A B C$ is the line joining the circumcentre and the incentre is parallel to $B C$, then $\cos B+\cos C=$

A

$1 / 2$

B

$3 / 4$

C

1

D

$3 / 2$