Verify the identity tan 0 cot 0 sec 0 csc 0 Use a Reciprocal Identity to rewrite the expression in terms of sine and cosine as a single rational expression tan 0 cot 0 sin 0 cos 8 cos 0 sin 0 sin 0 Use a Pythagorean Identity to rewrite the expression in terms of a single function and then simplify cos 8 sin 0