Find the value(s) of dy/dx for x^2 * y + y^2 = 5 at y =1.
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What are you having trouble with? Differentiate both sides with respect to x and solve for . Find the cooresponding x coordinate (since you have y = 1) and plug it in to your expression for (it'll contain x's and y's).
isn't there something tricky when differentiating y's? tahts what bugs me
Tackle this in parts;
Firstly use the product rule.
Then substitute your y-value and x-value (which you can calculate using the given formula)
Just like o_O said
Last edited by Sean12345; Apr 15th 2008 at 09:46 AM.
In case you were wondering i got
why can't it be positive 2/3 as well?
Originally Posted by DINOCALC09 why can't it be positive 2/3 as well? It can be i just took x to be positive.
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