Math, asked by naitikkumarpnc, 1 month ago

EXAMPLE 12 Prove the following identities :
(i) tan’ A-tan? B =
cos² B-cos? A sin? A - sin?
cos? B cos2 A cos? A cos2 B

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Answered by gis1873

1

EXAMPLE 12 Prove the following identities : (i) tan’ A-tan? B = cos² B-cos? A sin? A - sin? cos? B cos2 A cos? A cos2 B

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