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Mathematics for IGCSE & O level - Functions (Section 2 - No. 41)
Given the function f(x) = 4x + 3, what is the value of f⁻¹(3)?
0
3/4
1
-3/4
解释
Firstly, find the inverse function, f⁻¹(x) = (x-3)/4 and substitute x=3
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