Asked by Brian
A point is moving along the graph of y = 1/(1 + x^2) so that dxldt = 2 centimeters per minute. Find dy/dt for the following values of x.
(a) X = -2
(a) X = -2
Answers
Answered by
Steve
well,
dy/dt = -2x/(1+x^2)^2 dx/dt
so plug in x = -2
dy/dt = -2x/(1+x^2)^2 dx/dt
so plug in x = -2
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