1.

If f(x)= x^(2) - x ^(2) where * denotes the greatest integer function and x in 0 n n in N then the number of elements in the

Answer»

f(x) is continuous only at one integral value of x which is x=1

f(x)=[x2]−[x]2
 
at x →1f(x)=0
at x →1+f(x) =1−1=0
so continuous at 1



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