J JUSTIN M New member Dec 15, 2010 #1 I'm having trouble with these three trig identities for HW 1-cos(x)/sin(X) = Sin(X)/1+ Cos(X) Cot^2(X) - Cos^2(Y) = Cos^2(X)Cot^2(Y) ---- the second half of the equation is multiplied. Cos^3(X)= (1-sin^2)(cos X)
I'm having trouble with these three trig identities for HW 1-cos(x)/sin(X) = Sin(X)/1+ Cos(X) Cot^2(X) - Cos^2(Y) = Cos^2(X)Cot^2(Y) ---- the second half of the equation is multiplied. Cos^3(X)= (1-sin^2)(cos X)
