At which value(s) is the expression
\[ \frac{x}{x^{2}+4} \] undefined?
A(-2, 2)
Bx = ±2
Cnever undefined
D(-∞, -2) U (-2, 2) U (2, ∞)
E(-∞, -2] U [-2, 2] U [2, ∞)
\[ \frac{x}{x^{2}+4} \] undefined?
A(-2, 2)
Bx = ±2
Cnever undefined
D(-∞, -2) U (-2, 2) U (2, ∞)
E(-∞, -2] U [-2, 2] U [2, ∞)