(a*1/2-b*1/2)/(a*1/4-b*1/4)= 已知a,b>0,化简这个式子,
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/27 16:58:30
![(a*1/2-b*1/2)/(a*1/4-b*1/4)= 已知a,b>0,化简这个式子,](/uploads/image/z/5302113-33-3.jpg?t=%28a%2A1%2F2-b%2A1%2F2%29%2F%28a%2A1%2F4-b%2A1%2F4%29%3D+%E5%B7%B2%E7%9F%A5a%2Cb%3E0%2C%E5%8C%96%E7%AE%80%E8%BF%99%E4%B8%AA%E5%BC%8F%E5%AD%90%2C)
(a*1/2-b*1/2)/(a*1/4-b*1/4)= 已知a,b>0,化简这个式子,
(a*1/2-b*1/2)/(a*1/4-b*1/4)= 已知a,b>0,化简这个式子,
(a*1/2-b*1/2)/(a*1/4-b*1/4)= 已知a,b>0,化简这个式子,
(a*1/2-b*1/2)/(a*1/4-b*1/4)= 1/8(a-b)^2=(a^2+b^2-2ab)/8
(a*1/2-b*1/2)/(a*1/4-b*1/4)= 1/2(a-b)*(1/4)*(a-b)=(1/8)*(a*a-2ab+b*b)