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    Can't do 10a

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    (Original post by The_Blade)
    Can't do 10a

    Posted from TSR Mobile
    Everything you've written down so far is correct. Now use your calculator to find the value of:

    V = \pi \left( \dfrac{2^5}{5} + \dfrac{8(2)^3}{3} + 16(2) \right) \ \text{units^{3}}
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    Get 896/15 pi but book says 10 and 2/3

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    (Original post by The_Blade)
    Get 896/15 pi but book says 10 and 2/3

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    I also get that.

    \begin{aligned} V = \dfrac{896\pi}{15} \ \text{units}^3 & = 187.65780... \ \text{units}^3 \\ & \approx 188 \ \text{units}^3 \end{aligned}

    As the question suggests. I don't agree with the 10 and 2/3 that the book says.
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    (Original post by The_Blade)
    Can't do 10a

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    Are you asking about 10a (area) or 10b (volume)
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    (Original post by Khallil)

    As the question suggests. I don't agree with the 10 and 2/3 that the book says.
    Well you are incorrect

    10 \frac{2}{3}

    Is the answer - you seem to be finding the solution to 10b
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    (Original post by TenOfThem)
    Well you are incorrect


    (Original post by TenOfThem)
    You seem to be finding the solution to 10b
    I am indeed. That's because I looked past part a of the question that was posted and turned my attention to the incomplete working out the OP had written for 10b.
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    (Original post by Khallil)
    I am indeed. That's because I looked past the question that was written down and turned my attention to the incomplete working out the OP had posted for 10b.
    yep - easily done
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    The book says 10a) 10 and 2/3 and there is no answer for 10b.

    I'm confused.

    Mind you the book normally don't give answers for 'show that' questions.

    So if I accidentally did B how do you do part a?

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    (Original post by The_Blade)
    The book says 10a) 10 and 2/3 and there is no answer for 10b.

    I'm confused.

    Mind you the book normally don't give answers for 'show that' questions.

    So if I accidentally did B how do you do part a?

    Posted from TSR Mobile
    You find the area under the curve - like you were taught in C2
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    (Original post by TenOfThem)
    You find the area under the curve - like you were taught in C2
    Thanks again Ten

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    (Original post by The_Blade)
    Thanks again Ten

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    NP
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    (Original post by The_Blade)
    The book says 10a) 10 and 2/3 and there is no answer for 10b.

    I'm confused.

    Mind you the book normally don't give answers for 'show that' questions.

    So if I accidentally did B how do you do part a?

    Posted from TSR Mobile
    There isn't an answer for 10b because the answer's given in the question. It says "show that..." not "find..."
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    (Original post by TenOfThem)
    NP
    >5

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