= LHS = (sino - cose) (1 - 2 sino cos? e) = RHSEXAMPLE 27 Prove the fo – InterviewSolution

1.	= LHS = (sino - cose) (1 - 2 sino cos? e) = RHSEXAMPLE 27 Prove the following identities:(1) (1 + tan A tan B) + (tan A-tan B)2 = sec? A sec B(ii) (tan A + cosec B) 2 - (cot B - sec A) = 2 tan A cot B(cosec A + sec B)
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