Question

For the function $f(x)={}_{n\to \infty }^{\lim }\frac{\ln \left(\left[1+9x^2\right]\right)-9^n{x}^{2n}\cos \left(9x^2\right)}{1+9^n{x}^{2n}}$ number of points of discontinuity in $(-3,3)$ is (where [.] denotes G.I.F)

Answer 1

Answer: 2

Correct answer is (b)