Question

Write in interval notation the domain for this fuction
f(x)=2x/sqrt(3x-1)

Answer 1

The denominator is always zero right? Because on the answer key, the answer is (1/3,

Answer 2

set the denom to equal zero to find the domain.

sqrt(3x-1) = 0
3x - 1 = 0
solve for x.
the answer will be: the domain is all real numbers except ...

Answer 3

@shamil98 it's (-infinity, 1/3)U(1/3, infinity) right?

Answer 4

i'm not sure about the notation part. but it's all real numbers except 1/3.