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anurag singhal Grade:
        

f(x)=root(2{x}2-3{x}+1)


x belongs to [-1,1],  where {...} denotes fractional part of x
7 years ago

Answers : (1)

Vanya Saxena
18 Points
										

root[2{x}2-3{x}+1]=f(x)


2{x}2-3{x}+1  ≥  0   =>[2{x}-1] [{x}-1] ≥0


we know that {x}≠1


=>[2{x}-1]≥0


1/2≤x<3/2


but x belongs to [-1,1]


 =>x € [1/2 , 1)

7 years ago
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