Question

f x =x^2+a^2 determiati numerele reale pt a unde f(1)=2​

Answer 1

f(x) = x²+a²

f(1) = 1²+a² = a²+1

=> f(1) = 2

a²+1 = 2

a² = 2-1

a² = 1

a1 = -1

a2 = +1