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Mathematics 21 Online
OpenStudy (elleblythe):

Find the dy/dx of: 6x^(4/3) + 2y^5 = x^3y^2 + cube root of pi^5

OpenStudy (loser66):

where are you stuck?

OpenStudy (elleblythe):

@Loser66 is the correct answer (not simplified): -cube root of 8 / (-10y^4 + 2x^3y + 3x^2y) ?

OpenStudy (loser66):

You guessed? or just pick one of the options and check it from me?

OpenStudy (loser66):

Show me your work, please. Just take derivative both sides and isolate y'. Done.

OpenStudy (elleblythe):

@Loser66 I solved for it. \[8x ^{1/3}+10y ^{4}(dy/dx)=x^32y(dy/dx)+3x^2y^2(dy/dx)+5/3\pi^^{2/3}\]

OpenStudy (loser66):

the left hand side is ok, but the right one!! first term of the right one is \(x^3y^2\), hence its derivative is \(3x^2y^2+2x^3y (dy/dx)\) the last term is a constant, hence its derivative =0 , ignore it

OpenStudy (loser66):

now, combine and isolate dy/dx, please

OpenStudy (elleblythe):

@Loser66 -cube root of 8 + 3x^2y^2 / (-10y^4 + 2x^3y)

OpenStudy (loser66):

the sign of denominator is not correct, it should be \(\dfrac{dy}{dx}=\dfrac{3x^2y^2-\sqrt[3]{x}}{10y^4-2x^3y}\)

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