【数学填空题】计算:(a²)分之(bc)*(b²c)分之(2a)=()【数学填空题】计算:(a²)分之(bc)*(b²c)分之(2a)=()(x+3)分之1-(x-3)分之1=() 若m²-n²-4m-6n+13=0
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![【数学填空题】计算:(a²)分之(bc)*(b²c)分之(2a)=()【数学填空题】计算:(a²)分之(bc)*(b²c)分之(2a)=()(x+3)分之1-(x-3)分之1=() 若m²-n²-4m-6n+13=0](/uploads/image/z/10449545-41-5.jpg?t=%E3%80%90%E6%95%B0%E5%AD%A6%E5%A1%AB%E7%A9%BA%E9%A2%98%E3%80%91%E8%AE%A1%E7%AE%97%EF%BC%9A%EF%BC%88a%26%23178%3B%29%E5%88%86%E4%B9%8B%EF%BC%88bc%EF%BC%89%2A%EF%BC%88b%26%23178%3Bc%EF%BC%89%E5%88%86%E4%B9%8B%EF%BC%882a%EF%BC%89%3D%28%29%E3%80%90%E6%95%B0%E5%AD%A6%E5%A1%AB%E7%A9%BA%E9%A2%98%E3%80%91%E8%AE%A1%E7%AE%97%EF%BC%9A%EF%BC%88a%26%23178%3B%EF%BC%89%E5%88%86%E4%B9%8B%EF%BC%88bc%EF%BC%89%2A%EF%BC%88b%26%23178%3Bc%EF%BC%89%E5%88%86%E4%B9%8B%EF%BC%882a%EF%BC%89%3D%EF%BC%88%EF%BC%89%EF%BC%88x%2B3%EF%BC%89%E5%88%86%E4%B9%8B1-%EF%BC%88x-3%EF%BC%89%E5%88%86%E4%B9%8B1%3D%EF%BC%88%EF%BC%89+%E8%8B%A5m%26%23178%3B-n%26%23178%3B-4m-6n%2B13%3D0)
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【数学填空题】计算:(a²)分之(bc)*(b²c)分之(2a)=()【数学填空题】计算:(a²)分之(bc)*(b²c)分之(2a)=()(x+3)分之1-(x-3)分之1=() 若m²-n²-4m-6n+13=0
【数学填空题】计算:(a²)分之(bc)*(b²c)分之(2a)=()
【数学填空题】
计算:
(a²)分之(bc)*(b²c)分之(2a)=()
(x+3)分之1-(x-3)分之1=()
若m²-n²-4m-6n+13=0,则m=(),n=()
一次函数y=-2分之3x+3的图象如图所示,当-3<y<3时,x的取值范围是()
坐标点:y(3,0)x(0,2)
【数学填空题】计算:(a²)分之(bc)*(b²c)分之(2a)=()【数学填空题】计算:(a²)分之(bc)*(b²c)分之(2a)=()(x+3)分之1-(x-3)分之1=() 若m²-n²-4m-6n+13=0
【数学填空题】
计算:
(a²)分之(bc)*(b²c)分之(2a)=2/(ab)
(x+3)分之1-(x-3)分之1=(-6)/(x²-9)
若m²+n²-4m-6n+13=0,则m=(2),n=(3)
(题目是m²+n²-4m-6n+13=0吧)
(m-2)²+(n-3)²=0
根据非负性,可得
m-2=0
n-3=0
所以,m=2,n=3
一次函数y=-2分之3x+3的图象如图所示,当-3<y<3时,x的取值范围是(0