Calculus

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Find an equation for the tangent line of the function y=x+(4/x) at the point (2, 4).

The equation of the tangent line is .
You may enter the equation in any form.

  • Calculus -

    f(x)=x+4/x
    f'(x)=1-4/x^2
    f'(2)=1-1=0

    Equation of tangent line:
    y=0(x-2)+4, or
    y=4

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