Mathematics, 07.04.2022 04:50 ruben0018
Integration of csc^2(9x)dx
Answers: 1
![\displaystyle \int csc^2(9x) dx \\\\=\dfrac 19\displaystyle \int \csc^2 u ~du~~~~~~~;\left[\text{Let}~u= 9x \implies dx = \dfrac{du}9\right]\\\\=-\dfrac 19 \cot u + C\\\\=-\dfrac 19 \cot(9x)+C](/tpl/images/2719/6654/98177.png)
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