What is the integral of csc^2(x)+1 ?

The integral of csc^2(x)+1 is -cot(x)+x+C

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integral of csc^2(x)+1

\int csc^{2} (x) + 1 d x

- cot (x) + x + C

Solution steps

\int csc^{2} (x) + 1 d x

Apply the Sum Rule:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= \int csc^{2} (x) d x + \int 1 d x

\int csc^{2} (x) d x = - cot (x)

\int 1 d x = x

= - cot (x) + x

Add a constant to the solution

= - cot (x) + x + C