kak tolongin, limit kelas xi ips

-1/2akar 9-x = -1 /6 

Lim (√(9 - x) - 3)/x
= Lim (√(9 - x) - 3)/x . (√(9 - x) + 3)/(√(9 - x) + 3)
= Lim (9 - x - 9)/x(√(9 - x) + 3)
= Lim -x / x(√(9 - x) + 3)
= Lim -1 / (√(9 - x) + 3)
= -1 / (√(9 - 0) + 3)
= -1 / (3 + 3)
= -1/6