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等差数列{an}中,已知,a2+a5=4,an=33,则n为A.48B.49C.50D.5...
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等差数列{a
n}中,已知
,a
2+a
5=4,a
n=33,则n为( )
A.48
B.49
C.50
D.51
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等差数列{an}中,已知,a2+a5=4,an=33,则n为( )
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等差数列{an}中,已知,a2+a5=4,an=33,则n为( )
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