1000*(1+0.04)^10+1000**1+0.04)^9+` + + + + + +1000*(1+0.04)^2+1000*(1+0.04)=1000*(1+0.04)*(1-(1+0.04)^10)/(1-(1+0.04))
令q=1+0.04首年至取出共十年q^10
1000*(1+0.04)^10+1000**1+0.04)^9+` + + + + + +1000*(1+0.04)^2+1000*(1+0.04)=1000*(1+0.04)*(1-(1+0.04)^10)/(1-(1+0.04))
令q=1+0.04首年至取出共十年q^10