WAEC Further Mathematics 2024 Objective — Question 2
Question 2 of 40 from the West African Examinations Council (WAEC) Further Mathematics 2024 Objective paper, with the correct answer and a full explanation.
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2. Given that f:x -> sqrt(x) and g:x -> 25 - x^2, find the value of fog(3).
- A. 4Correct
- B. 3
- C. 2
- D. 1
Explanation
f(x)=sqrt(x), g(x)=25-x^2. fog(3)=f[g(3)]=sqrt(25-3^2)=sqrt(25-9)=sqrt(16)=4.
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