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標題:
發問:
(1/10+2/100+3/1000+4/10000+5/100000+6/1000000+7/10000000+8/100000000+9/1000000000+10/10000000000)*9/10
最佳解答:
( 9/10 )( 1/10 + 2/100 + 3/1,000 + 4/10,000 + 5/100,000 + 6/1,000,000 + 7/10,000,000 + 8/100,000,000 + 9/1,000,000,000 + 10/10,000,000,000 ) = 9/10[ ( 10^9 + 2x10^8 + 3x10^7 + 4x10^6 + 5x10^5 + 6x10^4 + 7x10^3 + 8x10^2 + 9x10 + 10 ) / 10^10 ] = 9( 1,234,567,900 )/10^11 = 111,111,111x10^-9
其他解答:
(1/10+2/100+3/1000+4/10000+5/100000+6/1000000+7/10000000+8/100000000+9/1000000000+10/10000000000)*9/10=0.111111111|||||9.000000008*10`-10 好難 唔知係唔係4E350C6F8B48ECA2
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簡單數學題發問:
(1/10+2/100+3/1000+4/10000+5/100000+6/1000000+7/10000000+8/100000000+9/1000000000+10/10000000000)*9/10
最佳解答:
( 9/10 )( 1/10 + 2/100 + 3/1,000 + 4/10,000 + 5/100,000 + 6/1,000,000 + 7/10,000,000 + 8/100,000,000 + 9/1,000,000,000 + 10/10,000,000,000 ) = 9/10[ ( 10^9 + 2x10^8 + 3x10^7 + 4x10^6 + 5x10^5 + 6x10^4 + 7x10^3 + 8x10^2 + 9x10 + 10 ) / 10^10 ] = 9( 1,234,567,900 )/10^11 = 111,111,111x10^-9
其他解答:
(1/10+2/100+3/1000+4/10000+5/100000+6/1000000+7/10000000+8/100000000+9/1000000000+10/10000000000)*9/10=0.111111111|||||9.000000008*10`-10 好難 唔知係唔係4E350C6F8B48ECA2
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