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find d^3y/dx^3 if y=x/1-x, if y=1/u and u=x^2+1, find dy/dx?
use differentials to approximate tan 46 degrees and 4th square root of 82, given a function f(x) such that f(3)=2 and f'(x)=(x^3+5)^1/5, use differentials to estimate f (3.2) I don't know how to start doing these problems.......
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- vectLv 71 decade agoFavorite Answer
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if y=1/u and u=x^2+1, find dy/dx?
dy/dx=dy/du*du/dx
=-2x/(x^2+1)^2
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