UPSC NDA I 2016 Mathematics Solved Paper

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For the next two (2) items that follow :
Let f(x) be the greatest integer function and g(x) be the modulus function.
[NDA I 2016]
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Question : 70 of 120
 
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‌ What is ‌(g∘f)(−‌
5
3
)
−(f∘g)(−‌
5
3
)
‌ equal to
‌
[NDA I 2016]
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