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think
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时间:2024/06/17 03:09:39
think
think
think
2(t-1)²+t=1
2(t-1)²+t-1=0
(2t-1)(t-1)=0
t-1=0或2t-1=0
t1=1 t2=½
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to think
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think about 、think of 、think over 、think out ,
I think