Find the value of the derivative of (x, y, z) = xy + yz + xz with

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Find the value of the derivative of ƒ(x, y, z) = xy + yz + xz with respect to t on the curve x = cos t, y = sin t, z = cos 2t at t = 1.

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Thomas Calculus Early Transcendentals

ISBN: 9780321884077

13th Edition

Authors: Joel R Hass, Christopher E Heil, Maurice D Weir

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