Question

A função dada por: f(x)=$\frac{ x^{2} -2}{x}$, determine:


f(2)+f(2)+f$( \frac{1}{2} )$

Answer 1

f(2) x²-2/x =
(2²-2)/2=
(4-2/2)=
2

f(1/2) ((1/2)²-2)/2 =
(1/4 - 2)/2 =
(1/4 - 4/4) /2 =
(-3/4)/2 =
-3/4 x 1/2 =
-3/8

f(2) + f(2) + f(1/2) = 2+2+(-3/8)= 4 - 3/8 = 5/8