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    hello,, can someone plz explain part b) ... first I used 1/2 of a) which is 13.22775.. Then (1(11)+13.22775) - ( 1(2) +13.22775) and i got 9.. But in the ms it did 9 + 13.22775.. doesnt the 13,2277 cancel out when subtracting...... thanks
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    (Original post by pondsteps)
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    I'm not entirely sure what you're talking about but you need only do this:

    \displaystyle

\begin{equation*}\int_2^{11} 1 - \frac{6}{\sqrt{x^2 - 2}} \, \mathrm{d}x = \int_2^{11} 1\, \mathrm{d}x + \frac{1}{2} \int_2^{11} \frac{12}{\sqrt{x^2 -2 }} \, \mathrm{d}x = [x]_2^{11} + \frac{1}{2} (a) = 9 + \frac{1}{2} (a)\end{equation*}

    where (a) is your answer to part (a). What confuses you about this?
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    (Original post by Zacken)
    I'm not entirely sure what you're talking about but you need only do this:

    \displaystyle

\begin{equation*}\int_2^{11} 1 - \frac{6}{\sqrt{x^2 - 2}} \, \mathrm{d}x = \int_2^{11} 1\, \mathrm{d}x + \frac{1}{2} \int_2^{11} \frac{12}{\sqrt{x^2 -2 }} \, \mathrm{d}x = [x]_2^{11} + \frac{1}{2} (a) = 9 + \frac{1}{2} (a)\end{equation*}

    where (a) is your answer to part (a). What confuses you about this?
    oh ok thanks....
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    (Original post by pondsteps)
    oh ok thanks....
    Do you understand?
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    (Original post by Zacken)
    Do you understand?
    yup x
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    (Original post by pondsteps)
    yup x
    Awesome!
 
 
 
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