Answer:
-12 / (6x-1)^5/3.
Step-by-step explanation:
y = 3/(6x-1)^2/3
--> y' = 3*(6x-1)^-2/3
= 3 * (-2/3(6x-1)^-5/3) * 6)
= -12(6x-1)^-5/3
= -12 / (6x-1)^5/3.