漸化式 演習4
a1 = 2/3 , ( n+2 )an = ( n-1)an-1 (n≧2)
a1 = 0 , a2 =1 , 5an+2 = 3an+1 +2an
a1 = 1 , a2 =2 , an+2 -2an+1 -3an =0
a1 = 0 , a2 =3 , an+2 -6an+1 +9an =0
a1 = 1 , b1 =3 , an+1 = 3an + bn ,
bn+1 = 2an + 4bn
(ハイレベル)
a1 = -1 , b1 =1 , an+1 = -2an - 9bn , bn+1 = an + 4bn
(ハイレベル)
a1 = 1 , an+1 = ( an -4) / ( an -3 )
(ハイレベル)
a1 = 4 , an+1 = ( 4an +3 ) / ( an +2 )
(ハイレベル)
