已知函数f(x)=(x-1)*2,an是公差为d的等差,bn是公比为q的等比,若a1=f(d-1),a3=f(d+1)求
1、已知函数f(x)=(x-1)*2,an是公差为d的等差,bn是公比为q的等比,若a1=f(d-1),a3=f(d+1
已知f(x)=(x-1)^2,数列{an}是公差为d的等差数列,{bn}是公比为q的等比数列,设a1=f(d-1),a3
已知f(x)=(x-1)^2,数列{an}是公差为d的等差数列,{bn}是公比为q的等比数列,设a1=f(d-1)
明天开学要交已知函数f(x)=(x-1)²,数列{a n}是 公差为D的等差数列,{b n}是公比为q(q∈R
1){an}是首项为a1,公比为q的等比数列,证{lgan}是等差 2){bn}是以b1为首的,公差为d证2`b(2的B
若an是公差d不等于0的等差数列,通项为an,bn是公比q不等于1的等比数列,已知a1=b1=1,且a2=b2,a6=b
若{an}是公差d≠0的等差数列,通项为an,{bn}是公比q≠1的等比数列,已知a1=b1=1,且a2=b2,a6=b
若{an}是公差d≠0的等差数列,通项为an,{bn}是公比q≠1的等比数列,已知a1=b1=1,且a2=b2,a6=b
在公差为d(d≠0)的等差数列{an}和公比为q的等比数列{bn}中,已知a1=b1=1,a2=b2,a8=b3,求d
若数列an是公差d≠0得等差数列,数列bn是公比q≠1的等比数列.a1=b1=1 a2=b2 a8=b3 (1)求d和q
已知{an}为公差是1的等差数列,函数f(x)=(x-a1)(x-a2).(x-an),则f'(a4)=__
已知等差数列{an}的公差和等比数列{bn}的公比都是d(d≠1),且a1=b1,a3=3b3,a5=5b5,求a1和d