Q17 / 93 · NTA Abhyas (JEE Main) 2020 · Mathematics · Continuity and Differentiability

Let fx=xx2+xx2+xx2+xx2, ∀x∈0,10 (where · and · are the greatest integer and fractional part functions respectively). The number of points of discontinuity of fx is

Correct answer: 0

Solution

fx=xx2+x2+xx2+x2
=x+xx2+x2
=x.x2=x3
Hence, fx is continuous ∀x∈0,10

Hence, the correct answer is 0.

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