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已知数列{xn}满足x2=,xn=(xn-1+xn-2),n=3,4,….若=2...
已知数列{x
n}满足x
2=
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,x
n=
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(x
n-1+x
n-2),n=3,4,….若
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=2,则x
1=( )
A.
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B.3
C.4
D.5
考点分析:
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