NDA 2017 Mathematics question
If , then on the interval which one of the following is correct?
- (A), where is the greatest integer function, and are both continuous
- (B), where is the greatest integer function, and are both continuous
- (C), where is the greatest integer function, and are both discontinuousCorrect
- (D), where is the greatest integer function, is discontinuous but is continuous
Answer: (C)
Solution
On , increases from to and is zero at . So for and for ; jumps from
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Question ID VK-028771