Q.
Solution of the inequation {x}({x}−1)({x}+2)≥0 (where {⋅} denotes fractional part function) is :
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a
x∈(−2,1)
b
x∈I (I denote set of integers)
c
x∈[0,1)
d
x∈[−2,0)
answer is B.
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Detailed Solution
0≤{x}<1{x}({x}−1)({x}+2)≥0⇒ {x}=0⇒x∈z
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