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March 27, 2017

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Find dy/dx by implicit differentiation.

x^4 + x^3y + 4y^2 = 7

x cos y + y cos x = 1

  • calculus - ,

    4x^3 + 3x^2y + x^3 y' + 8y y' = 0
    y'(x^3 + 8y) = -x^2 (4x+3y)

    y' = -x^2 (4x+3y) / (x^3 + 8y)

    do the other likewise and simplify

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