Question

How do you find the x intercepts for `y=2tan^2x-6`?

Answer 1

`x=+-60^@+180^@n`

Explanation:

`y=2tan^2x-6`

To find x-intercept we let y=0

`0=2tan^2x-6`

`2tan^2x=6`

`tan^2x=3`

`tanx=+-sqrt3`

`x=tan^-1 (+-sqrt3)`

`x=+-60^@+180^@n`