CAPE Pure Mathematics Unit 1 · May/June 2009 · Paper 1 · Question Q14
Two functions, f and g, are defined as f: x \to 2x + 1, 0 < x < 10, and g: x \to x^2, 0 < x < 3. The composite function gf can only be formed if the domain of f is restricted to
- (A)
0 < x < 1 - (B)
0 < x < 3 - (C)
0 < x < 10 - (D)
0 < x < 21
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