Question

Дана функция f(x)= {x², если 0≤x≤1 и {2x-1, если x>1. Найдите f(1/2)

Answer 1

$f(x)=\left \{ {{x^2\; ,\; esli\; 0\leq x\leq 1\; ,} \atop {2x-1\; ,\; esli\; x>1\; .}} \right.\\\\0\leq \frac{1}{2}\leq 1\; \; \Rightarrow \; \; \; f(\frac{1}{2})=(\frac{1}{2})^2=\frac{1}{4}$

Answer 2

$f(x)=\left \{ {{x^{2},0 \leq x\leq 1} \atop {2x-1,x>1}} \right. \\\\0 \leq \frac{1}{2} \leq1 \Rightarrow\\\\f(\frac{1}{2})=(\frac{1}{2})^{2}=\frac{1}{4}=0,25$