Nilai minimum dari fungsi y=(x-3) akar x adalah

^ pangkat
y = (x - 3)√x
y = (x - 3)x^½
y = x^(1+½) - 3x^½
y = x^3/2 - 3x^½
turunan = 0
(3/2)x^(3/2-1) - 3(½)x^(½-1) = 0
(3/2)x^½ - (3/2)x^-½ = 0
(3/2)√x - (3/2)(1/√x) = 0
3√x/2 - 3/2√x = 0
--------------------------------- × 2
3√x - 3/√x = 0
---------------------- × √x
3x - 3 = 0
3x = 3
x = 1
y = (1-2)√1 = -2 (nilai minimum)