If f : R → R is a function defined by f(x) = [x] cos [\frac{2x-1}{2}]π , where [x] denotes the greatest integer function, then f is

Correct Answer is : continuous for every real x

discontinuous only at non-zero integral values of x

JEE Mains Model Paper 9

Question : 78 of 90

Marks: +1, -0

If f : R → R is a function defined by f(x) = [x] cos [

2x−1

]π , where [x] denotes the greatest integer function, then f is

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