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30 January, 04:43

If sin (xy) = x, then find dy/dx

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Answers (2)
  1. 30 January, 04:48
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    Let u = xy

    now dy/dx (sin (u))

    = cos (u)

    =cos (dy/dx (xy))

    = cos (xy) y
  2. 30 January, 05:06
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    We are given the expression sin (xy) = x and is asked for the dy/dx. we can use implicit differentiation to differentiate the function. sin (xy) = xcos (xy) * (x dy + y dx) = dxdx (cos (xy) * y - 1) = - x * cos (xy) dydy/dx = - (cos (xy) * y - 1) / x * cos (xy) dy/dx = - 1/x + 1/x cos (xy)
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