7.若数列{an}\{a_{n}\}{an}各项均为正数,且an+12−an+1=an(n=1,2,3,⋯ ){a}_{n+1}^{2}-{a}_{n+1}={a}_{n}(n=1,2,3,\cdots )an+12−an+1=an(n=1,2,3,⋯),则下列结论错误的是((( )))