Use Trigonometric Identities to write each expression in terms of a single trigonometric identity or a constant. 1. cot sin 2. 1-sin sin20 1.) 2.) 3. sin 0 sec 0 cos 8 csc 8 cote 3.) Simplify the complex fraction. sec 5. tan 4.). 1-sin6 6. cot20 5.) sin 0 csc 0 7. cos e cot 8. sece 6.) 7.) 8.).