1
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
If $H$ is orthocentre of $\triangle A B C$ and $A H=x ; B H=y$; $C H=z$, then $\frac{a b c}{x y z}=$
A
1
B
$\frac{a+b+c}{x+y+z}$
C
$\frac{a}{x}+\frac{b}{y}+\frac{c}{z}$
D
$\frac{a b+b c+c a}{x y+y z+z x}$
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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