Wed 19 Sep, 2012 07:51 am - ok that much I understand, thank you. The final answer is (2t^2-3)t/2ndsqrt(1-t^2)... I am not getting this answer and how does the "g" disappear? (view)
Mon 17 Sep, 2012 11:08 am - given: sinx=t, 90<x<180
express the equation sin2x+tgx using "t" (begin by expressing cosx using t)
I've begun the problem using tan=sin\cos... not really getting anywhere... (view)
