A few integrating problems.. 10 points!?

I don't know how to type out integrating problems w/o it being too confusing so I uploaded an image here. Thanks!

http://img129.imageshack.us/my.php?image=80164575g...

Update:

There's no limit for 1. That's all the question says. Would you mind explaining 2 in more detail? I worked out 3, thanks.

Update 2:

Well, actually, should I treat m as a constant in 3?

3 Answers

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  • 1 decade ago
    Best Answer

    There are a few problems.

    The first thing in #1,

    ∫ ƒ(x) dx = 4

    An indefinite integral can't have a numerical value, you need some limits.

    In #2 arctan needs an argument.

    #3

    Just do integration by parts, you'll have to do it twice, I assume m is a constant. I think you can hand that one.

  • Anonymous
    1 decade ago

    1/ you forgot the limit of integration of f(x), so can't work out

    2/ = (1/2)(arctanx)^2 + c

    3/ Use integration by parts twice you will get the answer

  • hy
    Lv 4
    3 years ago

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