Prove the identities a) (sinx + cosx) (tan² x +1 / tanx) =

Last updated: 8/6/2022

Prove the identities a) (sinx + cosx) (tan² x +1 / tanx) = 1/ cosx + 1/sinx b) 2cos(2x)/ sin2x - 2sin²(x)) = 1 + cot(x)