1
AP EAPCET 2022 - 5th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $$2 \cosh 2 x+10 \sinh 2 x=5$$, then $$x=$$

A
$$\frac{1}{2} \log \frac{4}{3}$$
B
$$\frac{1}{2} \log \frac{2}{3}$$
C
$$\frac{1}{2} \log \frac{3}{2}$$
D
$$\frac{1}{2} \log \frac{3}{4}$$
2
AP EAPCET 2022 - 5th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

In any $$\triangle A B C, \frac{\cos A}{a}+\frac{\cos B}{b}+\frac{\cos C}{c}=$$

A
$$a^2+b^2+c^2$$
B
$$\frac{a^2+b^2+c^2}{2 a b c}$$
C
$$\frac{2 a b c}{a^2+b^2+c^2}$$
D
$$a+b+c$$
3
AP EAPCET 2022 - 5th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

In a $$\triangle A B C$$, if $$r_1=36, r_2=18$$ and $$r_3=12$$, then $$s=$$

A
6
B
8
C
16
D
36
4
AP EAPCET 2022 - 5th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

In a $$\triangle A B C, a=6, b=5$$ and $$c=4$$, then $$\cos 2 A=$$

A
$$-\frac{31}{32}$$
B
$$-\frac{15}{16}$$
C
$$\frac{31}{32}$$
D
$$\frac{15}{16}$$
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