# Answer to Question #31057 in Integral Calculus for Aaron Okievs.

Question #31057

Determine l = ∫ 2 cos x dx, given that l=7, when x=

cosx + sinx + c

2 sin x + 5

sin x + c

cosec x + c

cosx + sinx + c

2 sin x + 5

sin x + c

cosec x + c

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