I need help on the third part

Establish the identity. cos 0( tan 0 + cot0) = csc 0 Write the left side in terms of sine and cosine. sin 0 cos 0 cos 0 cos 0 sin 0 Simplify the expression inside the parentheses from the previous step and write the result in terms of sine and cosine. 1 cos 0 sin 0 cos 0 Simplify the expression from the previous step and write the result in terms of sin 0