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Intergrate the following: intcos5x cos...

Intergrate the following:
`intcos5x cos2xdx`

Text Solution

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`intcos5x cos2xdx`
=`1/2 int2cos5x cos2xdx`
=`1/2 `int(cos7x+cos3x)dx`
1/2.1/7sin7x+1/2.1/3sin3x+C
=1/14sin7x+1/6sin3x+C
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