1.

Let POR be a triangle of area Delta with a = 2,b= (7)/(2) and c=(5)/(2) here 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-sin 2P)/(2sinP+sin2P) equals

Answer»

`(3)/(4Delta)`
`(45)/(4Delta)`
`((3)/(4Delta))^(2)`
`((45)/(4Delta))^(2)`

ANSWER :C


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