Question: Verify each identity. (Examples 4 and 5) 20. (csco + cot #)(1 - cos #) _ sin a 21. sin # tano = tan #

Verify each identity. (Examples 4 and 5) 20. (csco + cot #)(1 - cos #) _ sin a 21. sin # tano = tan # - sine 22. 1 - tan # _ cos 9- 1 1 - coff 23. 1+ace CO8 0 + col Bech 24. (esc e - cot p)? = = 009 0) 1 + 008 8 25. 1 + tan- 1 1 - lan o 2 cos #-1 26. tan' 9 cos-#=1 - c05- # 27. suc 8 - cos # = tan A sin # 28. 1 - tan 9 = 2 sec- 9 - sect a 29. 1 - 608 9 sing 1 + 008 0 30. 1 + lan 4 sin # + com #

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