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JEE MAIN 2021
01-09-2021 S2
Question
Let $[t]$ denote the greatest integer $\leq t$. The number of points where the function $f(x)=[x]\left|x^2-1\right|+\sin \left(\frac{\pi}{[x]+3}\right)-[x+1], x \in(-2,2)$ is not continuous is $\_\_\_\_$ .
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