Question

f : R-R , f(x) = x la a doua plus 1 calculati f(-1) si f (1)​

Answer 1

Răspuns:

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

f(-1)= (-1) ^2 +1 = 1+1 = 2

f(1) = 1^2 +1 = 1+1 = 2