mathcalculus
Help! Implicit Differentiation with Radicals :(



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mathcalculus
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Loser66
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what do you get so far?

mathcalculus
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I'll send it right now, 1 sec.

mathcalculus
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mathcalculus
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@Loser66

Loser66
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me here but don't know the reason why cannot open the attachment

Loser66
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take derivative both sides, the right hand side give you 0, the left hand side has 2 terms, what do you get for the first term

mathcalculus
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i got some of it but i didn't get (3+2y) in the numerator.

mathcalculus
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dw:1381795463590:dw

Loser66
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\[(\sqrt{3x+2y})' +(\sqrt{4xy})'= \frac {3+2y'}{2\sqrt{3x+2y}} +\frac{4y+4xy'}{2\sqrt{4xy}}\]

Loser66
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you have to use chain rule,

Loser66
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dw:1381795702483:dw

Loser66
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right?

mathcalculus
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dw:1381795570646:dw

Loser66
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the net is sooooo bad, ok, let me write it out.

mathcalculus
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so why did you bring this on top in the numerator?

Loser66
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Loser66
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y is function of x, cannot take derivative as x, derivative of y is y'

Loser66
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ridiculous the net, me here but I am invisible, hehehe

phi
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dw:1381798106573:dw