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October 20, 2014

October 20, 2014

Posted by **Shawn** on Tuesday, November 1, 2011 at 10:40pm.

a) Determine where the function is increasing and decreasing.

b) Determine where the function is concave up and concave down.

________________________________________

I know:

f′(x)=cos(x)+2sin(x)

f″(x)=-sin(x)+2cos(x)

Other than that^^ I have no clue how to get the intervals where the function is increasing/decreasing and where it's concave up/concave down.

- calculus -
**Steve**, Wednesday, November 2, 2011 at 11:15amGo back and review he subject.

The function is increasing where f' > 0

The curve is concave up where f'' > 0.

Now just check 'em out.

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