Question: e) = sin & cos (20) + cos sin 20)= 3cos 0 cos 20 - 3sin 0 sIn 20

e) = sin & cos (20) + cos sin 20)= 3cos0 cos 20 - 3sin 0 sIn 20

e) = sin & cos (20) + cos sin 20)= 3cos 0 cos 20 - 3sin 0 sIn 20

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