等差数列{an}的各项均为正数,a1=3,前n项和为Sn,{bn}为等比数列,b1=2,且b2S2=32,b3S3=120(1)求an与bn.(2)求数列{anbn}的前n项和Tn.(3)若(1/S1)+(1/S2)+…(1/Sn)≤x²+ax+1对任意正整数n和任意x
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