4. f(x)= 10x-7/7 Step 1. Step 2. Step 3. Step 4.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:4. f(x)= 10x-7/7
9. f(x)= x-9/x+3
Step 1.
Step 1.
Step 2.
Step 2.
Step 3.
Step 3.
Step 4.
Step 4.
Transcribed Image Text:Example: Find the inverse of the function f(x)=x+3
Step 1. y= x+3
Step 2. x=y+3
Step 3. x-3=y or y=x-3
Step 4. f-1(x)= x-3
Solution:
(Replace f(x) by y)
(Interchange x's and y's)
(Solve for y in step 2)
(Replace y with f-1)
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