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Harry Potter
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How do I differentiate y^2 + x^2 = 1?
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Fermat
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d(y^2)/dy.dy/dx +d(x^2)/dx = d(1)/dx
2y.dy/dx + 2x = 0
dy/dx = -x/y
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It'sPhil...
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(Original post by Harry Potter)
How do I differentiate y^2 + x^2 = 1?
implicit
2y.dy/dx + 2x = 0 etc
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GH
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On the subject of differentiation if I differentiated 480 (e^kt) do I get this?

480 k(e^kt)
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Fermat
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if differentiated wrt t, yes.
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Harry Potter
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Thanks.
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