a Find an expression for f 1 (x) b Show that if f(x) f 1 (x), then x 2 x 1 0 c Find the values of x for which f(x) f 1 (x) Give your answer in surd form f(x) x 1 for xe R, x 1...

a To find the expression for fx we can start by writing y fx and th ...

a. Find an expression for f 1 (x). b. Show that if f(x) = f 1 (x),

Question:

a. Find an expression for f⁻¹(x).
b. Show that if f(x) = f⁻¹(x), then x² − x − 1 = 0.
c. Find the values of x for which f(x) = f⁻¹(x).
Give your answer in surd form.

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Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

ISBN: 9781108407144

1st Edition

Authors: Sue Pemberton, Julian Gilbey

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Question Posted: Mar 09, 2023 05:43 AM

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a. Find an expression for f 1 (x). b. Show that if f(x) = f 1 (x),

Question:

f(x) = x-1 for xe R, x≠ 1

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a To find the expression for fx we can start by writing y fx and th...View the full answer

Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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