【数学分式加减计算】x+1分之1+1-x分之1【计算】x+1分之1+1-x分之1m²-m分之1+2m²-2分之m-5【(x-3)分之1】-【(x²-9)分之6】-【(6+2x)分之x-1】【(x²-y²)分之(x+2y)】-【(y
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 14:11:07
![【数学分式加减计算】x+1分之1+1-x分之1【计算】x+1分之1+1-x分之1m²-m分之1+2m²-2分之m-5【(x-3)分之1】-【(x²-9)分之6】-【(6+2x)分之x-1】【(x²-y²)分之(x+2y)】-【(y](/uploads/image/z/1117793-65-3.jpg?t=%E3%80%90%E6%95%B0%E5%AD%A6%E5%88%86%E5%BC%8F%E5%8A%A0%E5%87%8F%E8%AE%A1%E7%AE%97%E3%80%91x%2B1%E5%88%86%E4%B9%8B1%2B1-x%E5%88%86%E4%B9%8B1%E3%80%90%E8%AE%A1%E7%AE%97%E3%80%91x%2B1%E5%88%86%E4%B9%8B1%2B1-x%E5%88%86%E4%B9%8B1m%26%23178%3B-m%E5%88%86%E4%B9%8B1%2B2m%26%23178%3B-2%E5%88%86%E4%B9%8Bm-5%E3%80%90%EF%BC%88x-3%EF%BC%89%E5%88%86%E4%B9%8B1%E3%80%91-%E3%80%90%EF%BC%88x%26%23178%3B-9%EF%BC%89%E5%88%86%E4%B9%8B6%E3%80%91-%E3%80%90%EF%BC%886%2B2x%EF%BC%89%E5%88%86%E4%B9%8Bx-1%E3%80%91%E3%80%90%EF%BC%88x%26%23178%3B-y%26%23178%3B%EF%BC%89%E5%88%86%E4%B9%8B%EF%BC%88x%2B2y%EF%BC%89%E3%80%91-%E3%80%90%EF%BC%88y%26%23)
【数学分式加减计算】x+1分之1+1-x分之1【计算】x+1分之1+1-x分之1m²-m分之1+2m²-2分之m-5【(x-3)分之1】-【(x²-9)分之6】-【(6+2x)分之x-1】【(x²-y²)分之(x+2y)】-【(y
【数学分式加减计算】x+1分之1+1-x分之1
【计算】
x+1分之1+1-x分之1
m²-m分之1+2m²-2分之m-5
【(x-3)分之1】-【(x²-9)分之6】-【(6+2x)分之x-1】
【(x²-y²)分之(x+2y)】-【(y²-x²)分之y】-【(x²-y²)分之2x】
【数学分式加减计算】x+1分之1+1-x分之1【计算】x+1分之1+1-x分之1m²-m分之1+2m²-2分之m-5【(x-3)分之1】-【(x²-9)分之6】-【(6+2x)分之x-1】【(x²-y²)分之(x+2y)】-【(y
x+1分之1+1-x分之1
=(1-x)/(1+x)(1-x)+(1+x)/(1-x)(1+x)
=2/(1-x²)
m²-m分之1+2m²-2分之m-5
=1/m(m-1)+(m-5)/2(m+1)(m-1)
=[2(m+1)+(m-5)m]/2m(m+1)(m-1)
=(m²-3m+2)/2m(m+1)(m-1)
=(m-2)(m-1)/2m(m+1)(m-1)
=(m-2)/2m(m+1)
【(x-3)分之1】-【(x²-9)分之6】-【(6+2x)分之x-1】
=(x+3)/(x-3)(x+3)-6/(x+3)(x-3)-(x-1)/2(x+3)
=(x+3-6)/(x-3)(x+3)-(x-1)/2(x+3)
=1/(x+3)-(x-1)/2(x+3)
=(3-x)/2(x+3)
【(x²-y²)分之(x+2y)】-【(y²-x²)分之y】-【(x²-y²)分之2x】
=(x+2y)/(x²-y²)+y/(x²-y²)-2x/(x²-y²)
=(x+2y+y-2x)/(x²-y²)
=(3y-x)/(x²-y²)