数学计算：
直接输入数学计算式，点击“下一步”按钮，即可获得计算答案。
它支持数学函数（包括三角函数）。
直接输入数学计算式，点击“下一步”按钮，即可获得计算答案。
它支持数学函数（包括三角函数）。
当前位置：数学运算 > 数学计算史 > 答案
总述：本次共解1题。其中
☆算术计算1题
〖1/1算式〗
作业：求算式 1/2+1/4+1/6+1/8+1/10+1/12+1/14+1/16+1/18+1/20+1/22+1/24+1/26 的值.
题型：数学计算
解:
1/2+1/4+1/6+1/8+1/10+1/12+1/14+1/16+1/18+1/20+1/22+1/24+1/26
=0.5+1/4+1/6+1/8+1/10+1/12+1/14+1/16+1/18+1/20+1/22+1/24+1/26
=0.5+0.25+1/6+1/8+1/10+1/12+1/14+1/16+1/18+1/20+1/22+1/24+1/26
=0.5+0.25+0.166667+1/8+1/10+1/12+1/14+1/16+1/18+1/20+1/22+1/24+1/26
=0.5+0.25+0.166667+0.125+1/10+1/12+1/14+1/16+1/18+1/20+1/22+1/24+1/26
=0.5+0.25+0.166667+0.125+0.1+1/12+1/14+1/16+1/18+1/20+1/22+1/24+1/26
=0.5+0.25+0.166667+0.125+0.1+0.083333+1/14+1/16+1/18+1/20+1/22+1/24+1/26
=0.5+0.25+0.166667+0.125+0.1+0.083333+0.071429+1/16+1/18+1/20+1/22+1/24+1/26
=0.5+0.25+0.166667+0.125+0.1+0.083333+0.071429+0.0625+1/18+1/20+1/22+1/24+1/26
=0.5+0.25+0.166667+0.125+0.1+0.083333+0.071429+0.0625+0.055556+1/20+1/22+1/24+1/26
=0.5+0.25+0.166667+0.125+0.1+0.083333+0.071429+0.0625+0.055556+0.05+1/22+1/24+1/26
=0.5+0.25+0.166667+0.125+0.1+0.083333+0.071429+0.0625+0.055556+0.05+0.045455+1/24+1/26
=0.5+0.25+0.166667+0.125+0.1+0.083333+0.071429+0.0625+0.055556+0.05+0.045455+0.041667+1/26
=0.5+0.25+0.166667+0.125+0.1+0.083333+0.071429+0.0625+0.055556+0.05+0.045455+0.041667+0.038462
=0.75+0.166667+0.125+0.1+0.083333+0.071429+0.0625+0.055556+0.05+0.045455+0.041667+0.038462
=0.916667+0.125+0.1+0.083333+0.071429+0.0625+0.055556+0.05+0.045455+0.041667+0.038462
=1.041667+0.1+0.083333+0.071429+0.0625+0.055556+0.05+0.045455+0.041667+0.038462
=1.141667+0.083333+0.071429+0.0625+0.055556+0.05+0.045455+0.041667+0.038462
=1.225+0.071429+0.0625+0.055556+0.05+0.045455+0.041667+0.038462
=1.296429+0.0625+0.055556+0.05+0.045455+0.041667+0.038462
=1.358929+0.055556+0.05+0.045455+0.041667+0.038462
=1.414485+0.05+0.045455+0.041667+0.038462
=1.464485+0.045455+0.041667+0.038462
=1.50994+0.041667+0.038462
=1.551607+0.038462
=1.590069
答案:1/2+1/4+1/6+1/8+1/10+1/12+1/14+1/16+1/18+1/20+1/22+1/24+1/26=1.590069
☆算术计算1题
〖1/1算式〗
作业：求算式 1/2+1/4+1/6+1/8+1/10+1/12+1/14+1/16+1/18+1/20+1/22+1/24+1/26 的值.
题型：数学计算
解:
1/2+1/4+1/6+1/8+1/10+1/12+1/14+1/16+1/18+1/20+1/22+1/24+1/26
=0.5+1/4+1/6+1/8+1/10+1/12+1/14+1/16+1/18+1/20+1/22+1/24+1/26
=0.5+0.25+1/6+1/8+1/10+1/12+1/14+1/16+1/18+1/20+1/22+1/24+1/26
=0.5+0.25+0.166667+1/8+1/10+1/12+1/14+1/16+1/18+1/20+1/22+1/24+1/26
=0.5+0.25+0.166667+0.125+1/10+1/12+1/14+1/16+1/18+1/20+1/22+1/24+1/26
=0.5+0.25+0.166667+0.125+0.1+1/12+1/14+1/16+1/18+1/20+1/22+1/24+1/26
=0.5+0.25+0.166667+0.125+0.1+0.083333+1/14+1/16+1/18+1/20+1/22+1/24+1/26
=0.5+0.25+0.166667+0.125+0.1+0.083333+0.071429+1/16+1/18+1/20+1/22+1/24+1/26
=0.5+0.25+0.166667+0.125+0.1+0.083333+0.071429+0.0625+1/18+1/20+1/22+1/24+1/26
=0.5+0.25+0.166667+0.125+0.1+0.083333+0.071429+0.0625+0.055556+1/20+1/22+1/24+1/26
=0.5+0.25+0.166667+0.125+0.1+0.083333+0.071429+0.0625+0.055556+0.05+1/22+1/24+1/26
=0.5+0.25+0.166667+0.125+0.1+0.083333+0.071429+0.0625+0.055556+0.05+0.045455+1/24+1/26
=0.5+0.25+0.166667+0.125+0.1+0.083333+0.071429+0.0625+0.055556+0.05+0.045455+0.041667+1/26
=0.5+0.25+0.166667+0.125+0.1+0.083333+0.071429+0.0625+0.055556+0.05+0.045455+0.041667+0.038462
=0.75+0.166667+0.125+0.1+0.083333+0.071429+0.0625+0.055556+0.05+0.045455+0.041667+0.038462
=0.916667+0.125+0.1+0.083333+0.071429+0.0625+0.055556+0.05+0.045455+0.041667+0.038462
=1.041667+0.1+0.083333+0.071429+0.0625+0.055556+0.05+0.045455+0.041667+0.038462
=1.141667+0.083333+0.071429+0.0625+0.055556+0.05+0.045455+0.041667+0.038462
=1.225+0.071429+0.0625+0.055556+0.05+0.045455+0.041667+0.038462
=1.296429+0.0625+0.055556+0.05+0.045455+0.041667+0.038462
=1.358929+0.055556+0.05+0.045455+0.041667+0.038462
=1.414485+0.05+0.045455+0.041667+0.038462
=1.464485+0.045455+0.041667+0.038462
=1.50994+0.041667+0.038462
=1.551607+0.038462
=1.590069
答案:1/2+1/4+1/6+1/8+1/10+1/12+1/14+1/16+1/18+1/20+1/22+1/24+1/26=1.590069
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