Final answer:
The domain of the function y = 3 tan(x) is all real numbers except 0 and integer multiples of π/4.
Step-by-step explanation:
The domain of the function y = 3 tan(x) is all real numbers except 0 and integer multiples of π/4.
Tan(x) is undefined when x = π/2, 3π/2, 5π/2, etc. In this case, tan(x) is also undefined when it is multiplied by 3 since any number multiplied by undefined results in undefined.
Therefore, the domain of y = 3 tan(x) is all real numbers except 0 and integer multiples of π/4.