Question

dada a função r→ r definida f(x) - x² - 2 calcule

a) f(-1)
b) f(1)
C) f(0)
​

Answer 1

a)

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

b)

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

c)

$f(0) = - {(0)}^{2} - 2 \\ f(0) = 0 - 2 \\ f(0) = - 2$