Asked by marie
Assume x and y are functions of t. Evaluate dy/dt.
xy - 5x + 2x^3 = -70; dx/dt=-5, x=2, y=-3
xy - 5x + 2x^3 = -70; dx/dt=-5, x=2, y=-3
Answers
Answered by
Reiny
xdy/dt + ydx/dt - 5dx/dt + 6x^2dx/dt = 0
2dy/dt - 2(-5) - 5(-5) + 6(25)(-5) = 0
solve for dy/dt
2dy/dt - 2(-5) - 5(-5) + 6(25)(-5) = 0
solve for dy/dt
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