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Given f(x)=sin(x)-2cos(x) on the interval [0,2pi].

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

I know:


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 -

    Go 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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