Trigonometry

Asked by siddhanth | 14th May, 2013, 08:34: PM

Expert Answer:

LHS
= (Cosec A - sin A) (sec A - cos A) (tan A + Cot A)
= (1/sinA - sin A) (1/cosA - cos A) (sin A/cosA + Cos A/sinA)
= (1 - sin2A) (1 - cos2A) (sin2A + cos2A) / sin2A cos2A
= cos2A sin2A (1) / sin2A cos2A
= 1
= RHS
 
Hence, proved.

Answered by  | 15th May, 2013, 10:22: AM

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