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Question

If f:RR is defined by f(x)=sin[x]π+tan[x]π1+[x2], then the range of f(x) (where [x] denotes integral part of x)

A
[1,1]
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B
{1,1}
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C
{1}
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D
{0}
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Solution

The correct option is D {0}
[x]=ϵZsin[x]π=tan[x]π=0 ; Where Z is an integer.

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