\(\int {\cos ec(ax + b)\cot (ax + b)dx = .....\cos ec(ax + b) + c,(a \ne 0)} \)

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4 + 10 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

\(\int {\cos ec(ax + b)\cot (ax + b)dx = .....\cos ec(ax + b) + c,(a \ne 0)} \)

a

\( - \frac{a}{b}\)

-a

\( - \frac{1}{a}\)