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 : 71 of 120
 
Marks: +1, -0
What is (f∘f)(−
9
5
)
+(g∘g)(−2)
equal to ?
[NDA I 2016]
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