小六數學唔識!!!
2010-06-19 6:07 am
1+2+2+3+3+3+4+4+4+4+5+5+5+5+5+6+6+6+6+6+6........+10+10+10+10+10 +10+10+10+10+10=?
回答 (4)
2010-06-19 6:10 am
✔ 最佳答案
= 1x1 + 2x2 +3x3+4x4+5x5+6x6+7x7+8x8+9x9+10x10=1+4+9+16+25+36+49+64+81+100
= 385
2010-06-21 6:26 am
1+2+2+3+3+3+4+4+4+4+5+5+5+5+5+6+6+6+6+6+6........+10+10+10+10+10 +10+10+10+10+10
咁計好庥煩,用第二個方法1+2x2+3x3+4x4+5x5+6x6+7x7+8x8+9x9+10x10=385
咁計好庥煩,用第二個方法1+2x2+3x3+4x4+5x5+6x6+7x7+8x8+9x9+10x10=385
2010-06-19 6:30 am
方法1：
1x1+2x2 +3x3+4x4+5x5+6x6+7x7+8x8+9x9+10x10
=1+4+9+16+25+36+49+64+81+100
= 385
方法2：
1x1+2x2 +3x3+4x4+5x5+6x6+7x7+8x8+9x9+10x10
=1+4+9+16+25+36+49+64+81+100
=36+64+49+81+1+9+4+16+25+100
=100+185+100
=385
1x1+2x2 +3x3+4x4+5x5+6x6+7x7+8x8+9x9+10x10
=1+4+9+16+25+36+49+64+81+100
= 385
方法2：
1x1+2x2 +3x3+4x4+5x5+6x6+7x7+8x8+9x9+10x10
=1+4+9+16+25+36+49+64+81+100
=36+64+49+81+1+9+4+16+25+100
=100+185+100
=385
2010-06-19 6:17 am
1+2+2+3+3+3+4+4+4+4+5+5+5+5+5+6+6+6+6+6+6........+10+10+10+10+10 +10+10+10+10+10
= 1x1 + 2x2 +3x3+4x4+5x5+6x6+7x7+8x8+9x9+10x10
=1+4+9+16+25+36+49+64+81+100
= 385
= 1x1 + 2x2 +3x3+4x4+5x5+6x6+7x7+8x8+9x9+10x10
=1+4+9+16+25+36+49+64+81+100
= 385
收錄日期: 2021-04-23 20:28:43
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100618000051KK01646