inte^x(1-cotx+cot^2x)dx= e^xcotx+C (b) ...

`inte^x(1-cotx+cot^2x)dx=` `e^xcotx+C` (b) ` e^xcotx+C` (c) `e^x\ cos e c\ x+C` (d) ` e^x\ cos e c\ x+C`

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