Given $\small{f(x) = -6\sqrt{x-1}}$ and $\small{g(x) = \sqrt{x-1}}$, find formulas for $\small{f + g, f - g, fg, \mbox{and} \;f/g}$ plus the domains of each. Enter the domains using interval notation, and use inf for $\small{\infty}$ if appropriate.

$\small{(f + g)(x)}$	=
Domain	=

$\small{(f - g)(x)}$	=
Domain	=

$\small{(fg)(x)}$	=
Domain	=

$\large{\left(\frac{\;f\;}{g}\right)}\small{(x)}$	=
Domain	=