Mathematics

Mathematics

Problem

∫x+sin⁡x1+cos⁡xdx\int \frac{x + \sin x}{1 + \cos x} dx is equal to (a) −xtan⁡x2+c-x \tan \frac{x}{2} + c (b) xtan⁡x2+cx \tan \frac{x}{2} + c (c) xtan⁡x+cx \tan x + c (d) 12xtan⁡x+c\frac{1}{2} x \tan x + c (a) −xtan⁡x2+c-x \tan \frac{x}{2} + c (b) xtan⁡x2+cx \tan \frac{x}{2} + c (c) xtan⁡x+cx \tan x + c (d) 12xtan⁡x+c\frac{1}{2} x \tan x + c

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