已知数列{bn}是等差数列,b1=1,b1+b2+...+b10=145

已知数列{bn}是等差数列,b1=1,b1+b2+...+b10=100.(1)求数列{bn}的通项公式bn; (2)设 已知数列{bn}是等差数列,b1=1,b1+b2+...+bn=145 证明：两个数列an,bn ,an等比数列,bn等差数列,a1=b1=1 ,a2>0 ,a10=b10 ,则b2≥a2. 已知数列{an}是等差数列,a1=1,公差为2,又已知数列{bn}为等比数列,且b1=a1,b2(a2-a1)=b1,求 已知数列{an}是等差数列,且a1=1,公差为2,数列{bn}为等比数列且b1=a1,b2(a2-a1)=b1 已知等差数列{an}中,a1=1,a7=4,数列{bn}是等比数列,b1=6,b2=a3. 高三数列题：已知数列an是递增等差数列,bn是等比数列,且a1=1,b1=2,a4=b2,a8=b3↓ 设{an}是等差数列,bn=1/2^an,已知b1+b2+b3=21/8,b1*b2*b3=1/8,求等差数列的通项an 数列{an}是等差数列,数列{bn}满足条件bn=0.5的an次方,已知b1+b2+b3=21/8, 已知《an>是公差大于0的等差数列,满足a3a6=55 a2+a7=16 数列b1,b2-b2,b3-b2.bn-b(n 已知{an}是等差数列,首项a1=3,前n项和为sn,数列{bn}是等比数列,首项b1=1,且a2b2=12,s3+b2 已知等差数列{an}的公差d不等于0,数列{bn}是等比数列,a1=b1=1,a2=b2,a4=b4