An algebra problem by Vinay Jain
Algebra
Level
pending
The range of f(x) = sgn{x} is: (where {.} represents fractional part function)
[0,1)
{1}
[0,1]
{0,1}
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1 solution
The value of { x } is always greater than or equal to zero for all real x .
Thus, f ( x ) = 1 for all non-integers and f ( x ) = 0 for all integers.