an+1=an+4^n
an+1-an=4^n
階差数列の公式より
an=1+4・4^n-1-1/3=1+4^n/3-4/3=4^n/3-1/3
計算はあってるかわかんないです
Answers
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉
an+1=an+4^n
an+1-an=4^n
階差数列の公式より
an=1+4・4^n-1-1/3=1+4^n/3-4/3=4^n/3-1/3
計算はあってるかわかんないです
Users viewing this question
are also looking at these questions 😉
