59/(1+R)+59/(1+R)^2+59/(1+R)^3+59/(1+R)^4+59/(1+R)^5+1250/(1+R)^5=1000
令t=(1+R),通分,1000t^5-59t^4-59t^3-59t^2-59t-59-1250=0
然后分解因式进行求解即可
59/(1+R)+59/(1+R)^2+59/(1+R)^3+59/(1+R)^4+59/(1+R)^5+1250/(1+R)^5=1000
令t=(1+R),通分,1000t^5-59t^4-59t^3-59t^2-59t-59-1250=0
然后分解因式进行求解即可把v 给点分OK
59/(1+R)+59/(1+R)^2+59/(1+R)^3+59/(1+R)^4+59/(1+R)^5+1250/(1+R)^5=1000
令t=(1+R),通分,1000t^5-59t^4-59t^3-59t^2-59t-59-1250=0