The functions s and t are defined as s(x) = 10 x, x , t(x)

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The functions s and t are defined as s(x) = −10 − x, x ∈ ℝ, t(x) = 2|x + b| − 8, x ∈ ℝ, where b is a constant. The equation s(x) = t(x) has exactly one real root. Find the value of b.

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Pearson Edexcel A Level Mathematics Pure Mathematics Year 2

ISBN: 9781292183404

1st Edition

Authors: Greg Attwood, Jack Barraclough, Ian Bettison, David Goldberg, Alistair Macpherson, Joe Petran

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