Prove each identity a) cosx tan^3x= sinx tan^2x do i do 1-2sin^2x 2tanx/1-tan^2x = sinx tan^2x
Last edited by Skoz; December 2nd 2009 at 05:25 PM.
Follow Math Help Forum on Facebook and Google+
Originally Posted by Skoz Prove each identity a) cosx tan^3x= sinx tan^2x do i do 1-2sin^2x 2tanx/1-tan^2x = sinx tan^2x ???
View Tag Cloud