13/03/23 00:49:44.79
>>57
a[n]=b[n-1]+3
b[n]=2a[n-1]-1
→
a[n-1]=b[n-2]+3
b[n-1]=2a[n-2]-1
下の式を上に代入
13/03/23 00:49:44.79
>>57
a[n]=b[n-1]+3
b[n]=2a[n-1]-1
→
a[n-1]=b[n-2]+3
b[n-1]=2a[n-2]-1
下の式を上に代入
13/03/23 00:49:44.79
>>57
a[n]=b[n-1]+3
b[n]=2a[n-1]-1
→
a[n-1]=b[n-2]+3
b[n-1]=2a[n-2]-1
下の式を上に代入