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Math Help - Equation of the tangent plane

  1. #1
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    Equation of the tangent plane

    z= ylnx (1,4,0)

    so, z = 4x -4

    can anyone tell me if this is correct?
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  2. #2
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    Quote Originally Posted by greencheeseca View Post
    z= ylnx (1,4,0)

    so, z = 4x -4

    can anyone tell me if this is correct?
    yes and yes.
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