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Which of the following is correct? ([.] ...

Which of the following is correct? ([.] represents greatest integer function, () represents fractional function) (1) `[{x]] + [{x}] + [{x^2 + x + 2}] + {[x^2 + x + 21} = 0` (2) `([(200+1)/2]+[(200+2)/2^2]+.....oo)+([10]+[10+1/10]+[1+2/10]+....+[10+9/10])=300`

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