a. Find an expression for (fg) 1 (x). b. Find expressions for: i. f 1 g 1
Question:
a. Find an expression for (fg)−1(x).
b. Find expressions for:
i. f−1 g−1(x)
ii. g−1 f−1(x).
c. Comment on your results in part b.
Investigate if this is true for other functions.
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Step by Step Answer:
a To find fg1x we need to solve for x in the equation fgx x First we find fgx by plugging gx into fx which gives us fgx fgx fx4 2x x4 2x3 5 Now we sol...View the full answer
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Related Book For 
Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook
ISBN: 9781108407144
1st Edition
Authors: Sue Pemberton, Julian Gilbey
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