1. Tardigrade
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  3. Mathematics
  4. For the function f(x)= n arrow ∞ lim ( ln ([1+9 x2])-9n x2 n cos (9 x2)/1+9n x2 n) number of points of discontinuity in (-3,3) is (where [.] denotes G.I.F)

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

JEE AdvancedJEE Advanced 2020

Solution:

Correct answer is '2'