Asked by Anonymous
complete the identity:
sec x - 1/sec x = ?
sec x - 1/sec x = ?
Answers
Reiny
sec x - 1/sec x
= 1/cosx - cosx
= (1 - cos^2x)/cosx
= sin^2x/cosx
= (sinx/cosx)sinx
= tanxsinx
= 1/cosx - cosx
= (1 - cos^2x)/cosx
= sin^2x/cosx
= (sinx/cosx)sinx
= tanxsinx