The function f(x) = [x]^2 - [x^2], (where [y] is the greatest integer less than or equal to y), is discontinuous at

MHT CET Mathematics question

The function , (where is the greatest integer less than or equal to ), is discontinuous at

Answer: (D)

At an integer : and the right limit is ; the left limit is for , and for . The

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Question ID VK-028334