differentiate questions 10 and 12, showing all the steps. thank you so much

1:14- Differentiate. soc e 11. f(A) 12. = 1. f(x x - 2 cus.X Z y - 2 csex + 5 cos x 1 + sec e 3 f(x) sinx + ; cot.x 4. f (x) = VI sin x 13. f(x) = recsc.t 14. y = x sin r fan.x 5. y sec:0 tan 0 6. 9(0) - e'(tang - 0) COL 7. y.= ccosf + /sin 8. f(1) 15, Prove that (csc .x) - -est x col.t. 1 + sin x 9 y 10. 16. Prove that (see x) = secr lan r. 2 - tan .c X + COS X