Question

Domain of y = (x+3) / 4- sqrt(x^2-9)

Answer 1

\[y=x+3\div4-\sqrt{x ^{2}-9}\]

Answer 2

basically everything x can be >= 3

Answer 3

else itwould be imaginary... unless you want that

Answer 4

Isn't there a restriction at +- 5?

Answer 5

Why xcan't be x<=-3?

Answer 6

That's what I'm saying... can't it go to -infintiy?

Answer 7

(-infinity, -3)U(-3,-5), (3,5)U(5,infinity) ?

Answer 8

\[\left( -\infty,-5 \right)\cup(-5,-3]\cup[3,5)\cup(5,\infty)\]