数列{an}中,a1=1,an+1=an^2-1,a1+a2+a3+a4+a5=哪看不懂啊?
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数列{an}中,a1=1,an+1=an^2-1,a1+a2+a3+a4+a5=哪看不懂啊?
数列{an}中,a1=1,an+1=an^2-1,a1+a2+a3+a4+a5=
哪看不懂啊?
数列{an}中,a1=1,an+1=an^2-1,a1+a2+a3+a4+a5=哪看不懂啊?
a1=1
a2=1²-1=0
a3=0²-1=-1
a4=(-1)²-1=0
a5=0²-1=-1
...
a1+a2+a3+a4+a5=-1
求数列我在行,但你的问题叫人看不懂啊
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