摘要:已知数列满足递推关系式:且(t为常数.且t〉1)
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已知数列{an}满足递推关系式:an+2an-an+12=tn(t-1),(n∈N*),且a1=1,a2=t.(t为常数,且t>1)
(1)求a3;
(2)求证:{an}满足关系式an+2-2tan+1+tan=0,(n∈N*;
(3)求证:an+1>an≥1(n∈N*).
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已知数列{an}满足递推关系式:an+2an-an+12=tn(t-1),(n∈N*),且a1=1,a2=t.(t为常数,且t>1)
(1)求a3;
(2)求证:{an}满足关系式an+2-2tan+1+tan=0,(n∈N*;
(3)求证:an+1>an≥1(n∈N*).
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(1)求a3;
(2)求证:{an}满足关系式an+2-2tan+1+tan=0,(n∈N*;
(3)求证:an+1>an≥1(n∈N*).