Question
Consider the graph of the function f (x) = \(x+\frac{12}{x^2}\) , x ≠ 0
a. Write down
the zero of f (x) ;
the coordinates of the local minimum point. [4]
- Consider the function g (x) = 3 − x .
- b. Solve f (x) = g (x) . [2]
▶️Answer/Explanation
Ans:
(a)
(i) o = x+ \(\frac{12}{x^{2}}\)
x= -2.29 (-2.28942…)
(ii)(2.88,4.33)((2.88449..,4.3264=74))
(b)
3-x= x+ \(\frac{12}{x^{2}}\)
\(x=-1.43(-1.4328..)\)