Dada a função x2 -1 determine : f (0).... Pergunta de ideia deLalinharebelde

emillylouise80par2ef F (x) = x2 -1
F (0) = 02 - 1
F (0) = -1
(Só substituir x por zero).

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araujofranca

f(x) = x² - 1

f(0) = 0² - 1 = 0 - 1 = - 1........( resposta )

(Obs:...se x2 = x.2.....=> f(0) = 0.2 - 1 = 0 - 1 = - 1)

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araujofranca x2 = x.2 ou x2 = x² : ?

araujofranca f)x) = x² - 1....=> f(raiz de 3) = (raiz de 3)² - 1 = 3 - 1 = 2. Ok: ?

araujofranca f(1/3) = (1/3)² - 1 = 1/9 - 1 = 1/9 - 9/9....=> f(1/3) = - 8/9