tan(x) = 7/24 180<x<270 find cos (2x) please and and thank you
tan(x) = 7/24 180<x<270 find cos (2x) please and and thank you
cosx = 12/13 270<x< 360 find sin(2x)
sin3x - cos3x/ sinx- cosx= 1 +(sinx)(cosx)
tan (2x) -tan(x) = 0
I need help trying to sole tan(2x) =1- where x is more than or equal to 0 but x is less than or equal to pi