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Determine the differentials in each of the following cases. xy^2 + yx^2 = 1 |
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Answer» SOLUTION :`xy^2 +yx^2 = 1` `rArr dx CDOT y^2 + x cdot 2y dy +dy cdot x^2 + y cdot 2x dx = 0` `rArr (2 xy + x^2) dy = - (y^2 + 2xy) dx` `rArr dy=-(y^2+2xy)/(x^2+2xy) dx` |
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