当0≤X≤1时,化简根号X² +绝对值x-1等于
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当0≤X≤1时,化简根号X² +绝对值x-1等于
当0≤X≤1时,化简根号X² +绝对值x-1等于
当0≤X≤1时,化简根号X² +绝对值x-1等于
原式=x+1-x=1
[当0≤X≤1时,x>=0,化简根号x²=x
x-1
=X+(1-X)
=1