The functions f and g are defined, for x R, by f: x 3x -
Question:
The functions f and g are defined, for x ∈ R, by f: x → 3x - k, where k is a positive constant g: x → 5x - 14/x+1, where x ≠ -1.
a. Find expressions for f-1 and g-1.
b. Find the value of k for which f-1(5) = 6.
c. Simplify g-1(x).
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fx3x k gx5x14 x1 i F 1 G 1 let fx y let gxy y 3xk y5x14x1 ...View the full answer
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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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