1+7/33+3+7/33×2+5+7/33×3+...+21+7/33×11要过程!

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/29 07:32:56
1+7/33+3+7/33×2+5+7/33×3+...+21+7/33×11要过程!

1+7/33+3+7/33×2+5+7/33×3+...+21+7/33×11要过程!
1+7/33+3+7/33×2+5+7/33×3+...+21+7/33×11
要过程!

1+7/33+3+7/33×2+5+7/33×3+...+21+7/33×11要过程!
原式=(1+3+5+7+...21)+7/33×(1+2+3+...11)
=121+7/33×36
=1331/11+84/11
=1408/11
=128