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Let f(x)=[sinx + cosx], 0ltxlt2pi, (wher...

Let f(x)=[sinx + cosx], `0ltxlt2pi`, (where [.] denotes the greatest integer function). Then the number of points of discontinuity of f(x) is :

A

6

B

5

C

4

D

3

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The correct Answer is:
C
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