Question

$f\left(x\right)=\frac{log(1+x^2)}{x^4-10x^2+9}$ then

• A. f(x) is continuous on [5, 10]
• B. f(x) is continuous on [-2, 3]
• C. f(x) is continuous on [2, 4]
• D. f(x) is continuous on [7, 12]

Answer 1

Answer: (A), (D)

The correct options are
A f(x) is continuous on [5, 10]
D f(x) is continuous on [7, 12]

f(x) is a discontinuous when $x^4-10x^2+9=0$, x =$\pm$1, x =$\pm$3