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15 June, 10:52

Find dy/dx by implicit differentiation: 4 cos x sin y = 2

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  1. 15 June, 11:07
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    Hello,

    f (x, y) = 4cos x sin y-2

    @f/@x=-4sin x sin y

    @f/@y=4 cos x cos y

    dy/dx = - (@f/@x) / (@f/@y) = sin x sin y / (cos x cos y) = tg x * tg y
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