Can someone help me figure this two out? I feel like I am doing them wrong. We are using Fundamental identities.

Fundamental Identities Reciprocal Identities coto = Sec # CSCO fan 0 COS O sin 0 Quotient Identities sin 0 COS D fan 0 cold = CON O sin o Pythagorean Identities sin' 0 + cos' 0 = 1 1 + tan' 0 = sec 0 1 + cot0 = esc' 0 Even-Odd Identities sin (-0) = - sin 0 cos (= 0) = cos 0 tan ( - 0) = - tand esc (- 0) = - CSC 0 sec (-0) = sec 0 cot (- 0) = - cot 0- Write the expression in terms of sin + cosine a tana b sec D - cost sec = 0