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Math Help - Help again?

  1. #1
    Newbie
    Joined
    Jul 2012
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    America
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    3

    Help again?

    Hi again,

    Still doing my revision and have come across some questions which have me stumped.

    3. Find the equation of the tangent to the curve y = x√2x2 + 7 at x = 3.

    I got y=15+8.6*(x-3) -. Am i correct?


    I have attatched 2 questions as images,

    Thanks in advance for any help,

    Regards.
    Attached Thumbnails Attached Thumbnails Help again?-untitled.png   Help again?-untitled-2.png  
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