丨1/3-1/2丨+丨1/4-1/3丨...+丨1/100-1/99丨.计算要整个步骤
问题描述:
丨1/3-1/2丨+丨1/4-1/3丨...+丨1/100-1/99丨.计算要整个步骤
答
丨1/3-1/2丨+丨1/4-1/3丨...+丨1/100-1/99丨
=1/2-1/3+1/3-1/4+1/4-1/5+.+1/99-1/100
=1/2-1/100
=50/100-1/100
=49/100