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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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