Question

Seja f(x) = 2x² - 3x + 1

Calcule f(√2/3) (((((raiz de dois sobre três)))))

Answer 1

f(√2/3) = 2x² - 3x + 1=f(√2/3) = 2( √2/3)²-3( √2/3)+1=2·2/3-3(√2/3)=
4/3-3√2/3=√2/3