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    The partial derivatives of arctan(y/x)

    [SOLVED] The partial derivatives of arctan(y/x) let w = arctan(y/x) the partial derivatives are: dw/dx and dw/dy i know that the derivative or arctan(x) is 1/(1+x^2). so for dw/dy, i get (1/ 1 + (y^2/x^2) ) * (1/x) = x/(x^2 + y^2) ? correct? how do i find dw/dx?
    • Hayate
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    • Derivatives Partial Partial derivatives
    • Replies: 6
    • Forum: Calculus
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