Assuming that the equations define y as a differentiable function of x, use Theorem 8 to find
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Assuming that the equations define y as a differentiable function of x, use Theorem 8 to find the value of dy / dx at the given point.
x2 + xy + y2 - 7 = 0, (1, 2)
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THEOREM 8-A Formula for Implicit Differentiation Suppose that F(x, y) is differentiable and that the equation F(x, y) = 0 defines y as a differentiable func- tion of x. Then at any point where F, # 0, dy dx Fx F (1)
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Related Book For
Thomas Calculus Early Transcendentals
ISBN: 9780321884077
13th Edition
Authors: Joel R Hass, Christopher E Heil, Maurice D Weir
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