EXAMPLE 2 Differentiate (a) y = sin(x³) and (b) sin3(x). SOLUTION (a) If y = sin(x³), then the outer function is the sine function and the inner function is the power function, so the Chain Rule gives dy dx d sin (x³) (x³) Cos = dx evaluated at inner function derivative evaluated derivative of inner function outer of outer function function at inner function (b) Note that sin3(x) = (sin(x))' Here the outer function is the power function and the inner function is the sine function. So dy dx d (sin(x)) 3 3· (sin(x))2 dx inner function derivative of outer function evaluated derivative of inner function at inner function

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Author:James Stewart
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Chapter1: Functions And Models
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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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EXAMPLE 2
Differentiate (a) y = sin(x³) and (b) sin (x).
%3D
SOLUTION
(a) If y = sin(x), then the outer function is the sine function and the inner function is the power function, so the Chain Rule gives
%3D
dy
dx
d
sin
(x³)
(x³)
CoS
=
dx
evaluated
at inner
function
derivative evaluated
of outer
function
derivative
of inner
outer
function
at inner
function
function
(b) Note that sin3(x) = (sin(x))'
Here the outer function is the power function and the inner function is the sine function. So
d
(sin(x)) 3
dx
(sin(x))2
3 ·
%3D
dx
inner
function
derivative of outer
function evaluated
at inner function
derivative
of inner
function
II
Transcribed Image Text:EXAMPLE 2 Differentiate (a) y = sin(x³) and (b) sin (x). %3D SOLUTION (a) If y = sin(x), then the outer function is the sine function and the inner function is the power function, so the Chain Rule gives %3D dy dx d sin (x³) (x³) CoS = dx evaluated at inner function derivative evaluated of outer function derivative of inner outer function at inner function function (b) Note that sin3(x) = (sin(x))' Here the outer function is the power function and the inner function is the sine function. So d (sin(x)) 3 dx (sin(x))2 3 · %3D dx inner function derivative of outer function evaluated at inner function derivative of inner function II
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