Question

f(x)=1/3x³-7 найти f(3)​

Answer 1

$f(x) = \frac{1}{3 {x}^{3} - 7} \\ f(3) = \frac{1}{3 \times {3}^{3} - 7 } = \frac{1}{81 - 7} = \frac{1}{74}$