Number of values of x in [1,2] the function f(x)=[x^4+1] is not continuous
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Given :
The given function is :
f(x) =
To Find :
Number of values of x in the interval [1,2] where f(x) is not continuous = ?
Solution :
Here the given function is a greatest integer function .
We know that greatest integer function is discontinuous at integral points .
Since here , x ∈ [1,2]
⇒ ∈ [1, ]
Or, ∈ [1 , 16]
Or, +1 ∈ [2,17]
So , the function f(x) has a range [2,17] .
Here the total no of integral points between 2 and 17 is 14 .
Hence total no of points of discontinuity of f(x) in the interval [1,2] is 14 .
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