What is the domain of the real-valued function f(x) = (2x - 7)/sqrt(x^2 - 7x + 6)?
It is all x EXCEPT values of x that make the denominator = 0
denominator factors to
(x -1)(x -6) so x cannot = 1 or 6
*** edit **** denominator cannot be negative either ( no neg sqrt ) which is from 1 to 6
(-∞,1) U (6, +∞)