The answer is in terms of t.

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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The answer is in terms of t.
dz
Use an appropriate form of the chain rule to find
dt
1
z = 3 cos x – sin xy; x =
y = 7t
Enter the answer in terms of t.
dz
dt
||
Transcribed Image Text:dz Use an appropriate form of the chain rule to find dt 1 z = 3 cos x – sin xy; x = y = 7t Enter the answer in terms of t. dz dt ||
Theorem (Two-Variable Chain Rule)
If x = x(t) and y = y(t) are differentiable at t, and if z = f(x, y) is differentiable at the point (x, y) = (x(t), y(t)), then
z = f(x(t), y(t)) is differentiable at t and
dz
dzdx
dzdy
dt
dx dt
dy dt
Transcribed Image Text:Theorem (Two-Variable Chain Rule) If x = x(t) and y = y(t) are differentiable at t, and if z = f(x, y) is differentiable at the point (x, y) = (x(t), y(t)), then z = f(x(t), y(t)) is differentiable at t and dz dzdx dzdy dt dx dt dy dt
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