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Find dy/dx by implicit differentiation and evaluate the derivative at the given point.

xy = 35 ...?

User Clocksmith
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1 Answer

5 votes
So, we have xy=35
Since that, the first thing you should do is to differentiate with respect to x
(look at the pic. 1), as you can see this is simply 1, which means you have to simplify
Then we need to perform solving for
for dy/dx as we are about to get the derivative of y with respect to x. pic.2
Get back to the oroginal function, now we can substitute this for y to get the func which will depend only on x pic.3
Then pic.4

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Find dy/dx by implicit differentiation and evaluate the derivative at the given point-example-3
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User Michael Martinez
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7.8k points

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