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Let PQR be a triangle of area Delta with...

Let PQR be a triangle of area `Delta` 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

A

`3/(4Delta)`

B

`45/(4Delta)`

C

`(3/(4Delta))^2`

D

`(45/(4Delta))^2`

Text Solution

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The correct Answer is:
C
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