What is the integral of cos((pix)/(12)) ?

The integral of cos((pix)/(12)) is (12)/pi sin((pix)/(12))+C

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integral of cos((pix)/(12))

\int cos (\frac{π x}{12}) d x

\frac{12}{π} sin (\frac{π x}{12}) + C

Solution steps

\int cos (\frac{π x}{12}) d x

Apply u-substitution

: \int cos (u) \frac{12}{π} d u

= \int cos (u) \frac{12}{π} d u

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= \frac{12}{π} \cdot \int cos (u) d u

Use the common integral:

\int cos (u) d u = sin (u)

= \frac{12}{π} sin (u)

Substitute back

u = \frac{π x}{12}

= \frac{12}{π} sin (\frac{π x}{12})

Add a constant to the solution

= \frac{12}{π} sin (\frac{π x}{12}) + C

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What is the integral of cos((pix)/(12)) ?
The integral of cos((pix)/(12)) is (12)/pi sin((pix)/(12))+C