设数列{bn}满足bn+2=-bn+1-bn(n∈N*),b2=2b1.
(1)若b3=3,求b1的值;
(2)求证数列{bnbn+1bn+2+n}是等差数列;
(3)设数列{Tn}满足:Tn+1=Tnbn+1(n∈N*),且T1=b1=-,若存在实数p,q,对任意n∈N*都有p≤T1+T2+T3+…+Tn<q成立,试求q-p的最小值.
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设数列{bn}满足bn+2=-bn+1-bn(n∈N*),b2=2b1.
(1)若b3=3,求b1的值;
(2)求证数列{bnbn+1bn+2+n}是等差数列;
(3)设数列{Tn}满足:Tn+1=Tnbn+1(n∈N*),且T1=b1=-,若存在实数p,q,对任意n∈N*都有p≤T1+T2+T3+…+Tn<q成立,试求q-p的最小值.
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