999²-(π-3)^0 怎么算.急.
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999²-(π-3)^0 怎么算.急.
999²-(π-3)^0 怎么算.急.
999²-(π-3)^0 怎么算.急.
999²-(π-3)^0
=999^2-1
=(999+1)(999-1)
=1000x998
=998000
999²-(π-3)^0
=999²-1
=(999-1)(999+1)
=998000
999²-(π-3)^0=999²-1=(999+1)(999-1)=998000