Given that \(f : x \to x^{2}\) and \(g : x \to x + 3\),
FURTHER MATHEMATICS
WAEC 2015
Given that \(f : x \to x^{2}\) and \(g : x \to x + 3\), where \(x \in R\), find \(f o g(2)\).
- A. 25
- B. 9
- C. 7
- D. 5
Correct Answer: A. 25
Explanation
\(f : x \to x^{2} ; g : x \to x + 3\)
\(g(2) = 2 + 3 = 5\)
\(f o g(2) = f(5) = 5^{2} = 25\)
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