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化简:1÷得
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化简得.
化简得.
化简1得.
化简得当m=-1时原式的值为.
已知-1
化简︱3-π︱-π得
3
-3
2π-3
3-2π
当a<1时化简得
a﹣1
a+1
1﹣a
﹣a﹣1
化简得.
化简2a-11+2a得.
已知﹣1<a<0化简得.
已知则化简得
化简得__________当m=-1时原式的值为________.
化简得.
化简得.
化简﹣得
6
2x
6或﹣2x
6或2x或﹣2x
把化简得_________.
化简最后得_________.
如图化简:-+|b+a-1|得
1
1-2b-2a
2a-2b+1
2a+2b-1
当m<1时化简得
-2m+4
4
-4
2m-6
化简最后得_________.
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