f(x) = x 2 - x - 5 for x R a. Find the smallest value
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f(x) = x2 - x - 5 for x ∈ R
a. Find the smallest value of f(x) and the corresponding value of x.
b. Hence write down a suitable domain for f(x) in order that f-1(x) exists.
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Related Book For
Cambridge IGCSE And O Level Additional Mathematics Coursebook
ISBN: 9781108411660
2nd Edition
Authors: Sue Pemberton
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