已知数列{an}的前n项和为Sn,且Sn=2an-2,数列{bn}满足b1=1,且bn+1=bn+2.
(1)求数列{an},{bn}的通项公式;
(2)设cn=an-bn,求数列{cn}的前2n项和T2n.
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已知数列{an}的前n项和为Sn,且Sn=2an-2,数列{bn}满足b1=1,且bn+1=bn+2.
(1)求数列{an},{bn}的通项公式;
(2)设cn=an-bn,求数列{cn}的前2n项和T2n.
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