T6 Prove trigonometric identities using reciprocal identities quotient identities Pythagorean identities sum or difference identities restricted to sine cosine and tangent double angle identities restricted to sine cosine and tangent 1 15 pts Prove 3 of the following identities for all permissible values of the variable Clearly indicate the selected identity and the chosen side State any non permissible values sinx A C 1 cos x cos 8 cote sec8 tan 8 B cot 8 1 sin 0 tan 8 1 cos 0 1 60s sinx tan x cos x CSCX 1 cos x D cot 0