AP EAPCET 23-Aug-2021 Shift 2 Paper

Section: Mathematics

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Question : 25 of 160

Marks: +1, -0

In triangle ABC,

16RsΔ‌sin‌

A

2

‌sin‌

B

2

‌cos‌

C

2

s−c

is equal to

r1r2
r3
r1.r2.r3
r1+r2+r3
4r1r2r3

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