数列an满足,an=3a(n-1)(下标)+3^n-1(n≥2),a3=95(1)求a1,a2的值(2)是否存在一个实数t,使得bn=1/(3^n)(an+t),bn为等差数列?若有,求出t的值.(3)求数列an的前n项和Sn
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/31 23:29:59
![数列an满足,an=3a(n-1)(下标)+3^n-1(n≥2),a3=95(1)求a1,a2的值(2)是否存在一个实数t,使得bn=1/(3^n)(an+t),bn为等差数列?若有,求出t的值.(3)求数列an的前n项和Sn](/uploads/image/z/9316209-57-9.jpg?t=%E6%95%B0%E5%88%97an%E6%BB%A1%E8%B6%B3%2Can%3D3a%28n-1%29%28%E4%B8%8B%E6%A0%87%29%2B3%5En-1%28n%E2%89%A52%29%2Ca3%3D95%281%29%E6%B1%82a1%2Ca2%E7%9A%84%E5%80%BC%282%29%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8%E4%B8%80%E4%B8%AA%E5%AE%9E%E6%95%B0t%2C%E4%BD%BF%E5%BE%97bn%3D1%2F%283%5En%29%28an%2Bt%29%2Cbn%E4%B8%BA%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%97%3F%E8%8B%A5%E6%9C%89%2C%E6%B1%82%E5%87%BAt%E7%9A%84%E5%80%BC.%283%29%E6%B1%82%E6%95%B0%E5%88%97an%E7%9A%84%E5%89%8Dn%E9%A1%B9%E5%92%8CSn)
xUNA~/w;[73Ň&1OJV(C[Zʻδ<3gwi1&soS ϯ;hU{gږIk,*:ç^{5eOjToj89sm|Wy̷?_y3gw3MM
tqIV72n_tkb3/^dfXQ[q&_+̸S_U)O]-`A0Dßȿn}ŚXZ6%nK|>bW=7