Question

write the domain of function(x)=x/xsquare-5x+6......please answer it as fast as possible nigg#

Answer 1

fx = x/(x2 -5x +6)

fx not valid if denominator is zero.

x2 -5x + 6 = 0
or, x2 - 2x - 3x + 6= 0
or, x(x - 2) -3(x - 2) = 0
or, (x -2)(x-3) = 0

x=2,3
fx valid for domain x € R - {2}, {3}