1-90C101+902C102-903C103+…+(-1)k90kC10k+…+9010C1010除以88的余数是(  )A.-87B.87C.-1D.

日期:2021-04-20 21:38:48 人气:1

1-90C101+902C102-903C103+…+(-1)k90kC10k+…+9010C1010除以88的余数是(  )A.-87B.87C.-1D.

1-90C101+902C102-903C103+…+(-1)k90kC10k+…+9010C1010
=(1-90)10
=8910
    A+
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