1
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

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

2
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

$52.5^{\circ}$

3
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

$3 / 2$

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

In a $\triangle A B C$, if $r_1: r_2=3: 4$ and $r_2: r_3=2: 3$, then $a:$$b:$$c$=

A

$2: 3: 4$

B

$3: 4: 5$

C

$4: 5: 6$

D

$5: 6: 7$