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
Answers
Answered by
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
Similar questions