At what value of x does the function f(x)=x' -3r? -9x change from deceasing to increasing? 1 -1 Find the derivative of f (x) = (2x* + 1+ 2x)° 6(2x* + 2x + 1)(8x³ + 2) 6(2x* + 2x)(8x³ + 2) Option 4 Option 2 6(2x* + 2x + 1)5 6(2x* + 2x + 1)*(8x³ + 2) Option 1 Option 3

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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i need the answer and calculations of these 2 question. tq
At what value of x does the function f(x)=x³ – 3x? -9x change from deceasing
to increasing?
1
-1
-3
Find the derivative of f (x) = (2x* + 1 + 2x)6
6(2x* + 2x + 1)(8x³ + 2)
6(2x* + 2x)(8x³ + 2)
Option 4
Option 2
6(2x* + 2x + 1)5
6(2x* + 2x + 1)5(8x³ + 2)
Option 1
Option 3
Transcribed Image Text:At what value of x does the function f(x)=x³ – 3x? -9x change from deceasing to increasing? 1 -1 -3 Find the derivative of f (x) = (2x* + 1 + 2x)6 6(2x* + 2x + 1)(8x³ + 2) 6(2x* + 2x)(8x³ + 2) Option 4 Option 2 6(2x* + 2x + 1)5 6(2x* + 2x + 1)5(8x³ + 2) Option 1 Option 3
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