Mathematics

Mathematics

Problem

∫cot⁡x tan⁡xsec⁡2x−1 dx=\int \frac{\cot x\,\tan x}{\sec^2 x - 1}\,dx = (a) cot⁡x−x+c\cot x - x + c (b) −cot⁡x+x+c-\cot x + x + c (c) cot⁡x+x+c\cot x + x + c (d) −cot⁡x−x+c-\cot x - x + c (a) cot⁡x−x+c\cot x - x + c (b) −cot⁡x+x+c-\cot x + x + c (c) cot⁡x+x+c\cot x + x + c (d) −cot⁡x−x+c-\cot x - x + c

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