
John M. answered 05/11/21
Tutor
4.7
(380)
Math Teacher/Tutor/Engineer - Your Home, Library, MainStreet or Online
tan2x−sec2x= Sin2x/Cos2x - 1/Cos2x = [Sin2x - 1] / Cos2x = [2SinxCosx - 1] / [1-2Sin2x]