The function f is defined by f x 4x x for x 2 a) Express 4x x in the form a (x b), where a and b are positive constants b) Express f 1 (x) in terms of x ...

ANSWER a We can complete the square to express 4x x in the desired form 4x x2 x2 4x x ...

The function f is defined by f: x 4x x for x 2. a)

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The function f is defined by f: x ↦ 4x − x² for x ≥ 2.

a) Express 4x − x in the form a − (x − b)², where a and b are positive constants.

b) Express f⁻¹(x) in terms of x.

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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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Question Posted: Apr 13, 2023 10:48 AM

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The function f is defined by f: x 4x x for x 2. a)

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ANSWER a We can complete the square to express 4x x in the desired form 4x x2 x2 4x x ...View the full answer

Complete Pure Mathematics 1 For Cambridge International AS & A Level

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