Properties of Triangle

Section: Mathematics

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Question : 11 of 15

Marks: +1, -0

Let PQR be a triangle of area D with a = 2, b =

7

2

and c =

5

2

, where a, b, and c are the lengths of the sides of the triangle opposite to the angles at P, Q and R respectively. Then

2sinP−sin2P

2sinP+sin2P

equals

[JEE Adv 2012 P2]

3
4Δ
45
4Δ
(
3
4Δ
)2
(
45
4Δ
)2

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