(1+19/92)+(1+19/92)*2+.+(1+19/92)11=x,求与x最接近的整数
问题描述:
(1+19/92)+(1+19/92)*2+.+(1+19/92)11=x,求与x最接近的整数
答
=1+2+3+.11+19/92+19/92*2+.19/92*11
=66+(19/92)*66
=66+13.63
=80