9) xdy- ydx = (x² + y ² ) ex dx a) artan. * =* b) arctan X = ţ c) auctan $ d) none of the above etc = -e²+c

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A:

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A: NOTE: Refresh your page if you can't see any equations. . use the formula…

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A:

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A:

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A: We will find out the required value.

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A: we have to find the power series which is converges on the interval (-4,0)