Question

FUNÇÃO Seja a função definida por f(x)=x²-1. Calcule f(1/2).

Answer 1

Oie, Td Bom?!

$f(x) = x {}^{2} - 1$

$f( \frac{1}{2} ) = ( \frac{1}{2} ) {}^{2} - 1$

$f( \frac{ 1 }{2} ) = \frac{1 {}^{2} }{2 {}^{2} } - 1$

$f( \frac{1}{2} ) = \frac{1}{4} - 1$

$f( \frac{1}{2} ) = \frac{1 - 4}{4}$

$f( \frac{1}{2} ) = - \frac{3}{4}$

Att. Makaveli1996