2. y = x(In x)³ dy d = x- :(In x)³ + (ln x)³ - dx dx dy = x : 3(In x)² + (In x)³(1) dx dy 3(In x)² + (In x)³ dx dy = (In x)²(3 + In x) dx

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section: Chapter Questions
Problem 5T
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Answer problem II.

ERROR IDENTIFICATION. Identify the errors present in the given solutions. Put an X mark on the spaces
provided beside the error, then write the correct solution.

1. у%3D2 In(3x? — 1)
dy
In(3x² – 2)]- (3x² – 1)
dx
dx
dx
dy
= 2 .
dx
1
6x
In(3x² – 1)
dy
12x
dx Зx2 — 1
2. у %3D х (In x)3
dy
d
d
= x-
(In x)³ + (ln x)³-
dx
dx
dx
dy
= x · 3(In x)? + (In x)³(1)
dx
dy
3(In x)² + (In x)³
dx
dy
= (In x)²(3 + In x)
dx
d
sec x (2 sin x) – (2 sin x) (sec x)
(2 sin x)²
d
sec x
3. g(x) =
2 sin z
(kindly refer to your
trigonometric
identities)
gʻ(x) =
2 sec x cos x – 2 sin x sec x tan x
gʻ(x) =
(2 sin x)2
2(1) – 2(tan²x)
(2 sin x)²
2(1 – tan²x)
2sin²x
1- tan?x
gʻ(x) =
gʻ(x) =
gʻ(x) =
2sin?x
Transcribed Image Text:1. у%3D2 In(3x? — 1) dy In(3x² – 2)]- (3x² – 1) dx dx dx dy = 2 . dx 1 6x In(3x² – 1) dy 12x dx Зx2 — 1 2. у %3D х (In x)3 dy d d = x- (In x)³ + (ln x)³- dx dx dx dy = x · 3(In x)? + (In x)³(1) dx dy 3(In x)² + (In x)³ dx dy = (In x)²(3 + In x) dx d sec x (2 sin x) – (2 sin x) (sec x) (2 sin x)² d sec x 3. g(x) = 2 sin z (kindly refer to your trigonometric identities) gʻ(x) = 2 sec x cos x – 2 sin x sec x tan x gʻ(x) = (2 sin x)2 2(1) – 2(tan²x) (2 sin x)² 2(1 – tan²x) 2sin²x 1- tan?x gʻ(x) = gʻ(x) = gʻ(x) = 2sin?x
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ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage