Asked by Jin
how does
secx(tanx + tan^2x- sec^2x)
simplified to
sec x (tanx -1)?
secx(tanx + tan^2x- sec^2x)
simplified to
sec x (tanx -1)?
Answers
Answered by
Reiny
you should have come across the identity
sec^2x = tan^2x + 1
(by dividing each term of sin^2 + cos^2x = 1 by cos^2x )
sub back in , and you got it
sec^2x = tan^2x + 1
(by dividing each term of sin^2 + cos^2x = 1 by cos^2x )
sub back in , and you got it
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