Question

how to find the domain ?

*g(x)=square root of x over 2x^2 + x -1

Answer 1

help please :))

Answer 2

sqrt requires positive x.

The denominator can take all positive x except x=1/2 (division by 0).

Answer 3

It's the square root of x or the square root of everything?

Answer 4

\[\sqrt{x} \over 2x ^{2}+x-1\]

Answer 5

so you have to make sure that
\[x\geq 0\] and also that \[2x^2+x-1\neq 0\]

Answer 6

oh right, what estudier said