Diketahui f(x)=x²-4x+3 tentukan 1.f-¹(x), 2.f-¹(12),3.nilai x jika f-¹(x) =7

By Posted on

Diketahui f(x)=x²-4x+3 tentukan 1.f-¹(x), 2.f-¹(12),3.nilai x jika f-¹(x) =7

1
y = {x}^{2} - 4x + 3 \ y = {(x - 2)}^{2} + - 1 \ y + 1 = {(x - 2)}^{2} \ sqrt{y + 1} = x - 2 \ sqrt{y + 1 + 2} = x \ {f}^{ - 1} (x) = sqrt{y + 1 + 2}