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Can anyone prove that 5sin^2 A+ 3cos^2 A= 2sin^2 A+3?

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Can anyone prove that 5sin^2 A+ 3cos^2 A= 2sin^2 A+3?

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asked Apr 13, 2016 in TRIGONOMETRY by anonymous

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The trigonometric identity is .

Consider the L.H.S,

Rewrite the identity

Fundamental identities: .

.

The trigonometric identity is proved.

answered Apr 13, 2016 by lilly Expert

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