Question

[Giving Medal and Fan! please help]
Find the domain. y=√tanx

Answer 1

What's the domain of the square root function?

Answer 2

i have to find the domain of y=√tanx

Answer 3

I know that, but you need to have some knowledge about the square root function to do that.

What kind of number can't be under the \(\sqrt{\text{ }}\) ?

Answer 4

negative number cant be under the square root?
@SithsAndGiggles

Answer 5

Right, which means you must have \(\tan x\ge0\). This is your domain, but you need to write it in terms of \(x\), and not \(\tan x\). What values of \(\tan x\) are non-negative?

Answer 6

1st and 3rd quadrant will have non-negative for tangent

Answer 7

@SithsAndGiggles