The functions f and g are defined for x R by f: x 2x
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The functions f and g are defined for x ∈ R by
f: x ↦ 2x − 1
g: x ↦ x² + x.
Express gf(x) in the form a(x + b)² + c, where a, b and care constants.
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ANSWER To find gfx we need to substitute the function gx into fx which means replacing x ...View the full answer
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Related Book For
Complete Pure Mathematics 1 For Cambridge International AS & A Level
ISBN: 9780198427438
2nd Edition
Authors: Jean Linsky, Brian Western, James Nicholson
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