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Math Help - Evaluate the definite integral of e^x - cos(x)

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    Member dokrbb's Avatar
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    Evaluate the definite integral of e^x - cos(x)

    I"ve got another one,

     \int_{0}^{5} (10e^{x} - 5cos(x))dx

    my work, so far  \int_{0}^{5} (- 5cos(x) + 10e^{x} )dx = (-5sinx + 10e^{x})


    is that right until here, because the next step is just replacing the values of x, and I suppose the mistake is before that (I did that too, just don't think it is needed here)...
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    Re: Evaluate the definite integral of e^x - cos(x)

    Hey dokrbb.

    You got the anti-derivative part right: now just evaluate F(5) - F(0) and you're done.
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    Member dokrbb's Avatar
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    Re: Evaluate the definite integral of e^x - cos(x)

    Quote Originally Posted by chiro View Post
    Hey dokrbb.

    You got the anti-derivative part right: now just evaluate F(5) - F(0) and you're done.
    cool, I just checked my calculator and it was set to DEG instead of RAD, that's why I was getting wrong numbers,

    thanks
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