The function f(x)=1x2−9f(x) = \frac{1}{x^2 - 9}f(x)=x2−91 has discontinuities at x=3x = 3x=3 and x=−3x = -3x=−3. What type are they?
Infinite discontinuities at both x=3x=3x=3 and x=−3x=-3x=−3
Jump discontinuities at both
Removable at x=3x=3x=3, infinite at x=−3x=-3x=−3
Removable at both