QUESTION

Asked by sonaisha | 24th Nov, 2008, 08:52: PM

Expert Answer:

LHS

=(1+SIN2A+COS2A+2SINA-2COSA-2SINACOSA) / (1+SIN2A+COS2A+2SINA+2COSA+2SINACOSA)

=(2+2SINA-2COSA-2SINACOSA) / (2+2SINA+2COSA+2SINACOSA)

=(1+SINA-COSA-SINACOSA) / (1+SINA+COSA+SINACOSA)

=(1-COSA)(1+SINA)/(1+COSA)(1+SINA)

=(1-COSA)/(1+COSA)

=RHS

HENCE PROVED

Answered by  | 3rd Dec, 2008, 02:37: AM

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