数学天才看过来,看过来,实在不会了,谢谢若f(x,y )=xy,g(x,y,z)=x+y-z.求f(-三分之一,二分之一)-g(5,-3,4)的值
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 07:43:09
![数学天才看过来,看过来,实在不会了,谢谢若f(x,y )=xy,g(x,y,z)=x+y-z.求f(-三分之一,二分之一)-g(5,-3,4)的值](/uploads/image/z/658399-31-9.jpg?t=%E6%95%B0%E5%AD%A6%E5%A4%A9%E6%89%8D%E7%9C%8B%E8%BF%87%E6%9D%A5%2C%E7%9C%8B%E8%BF%87%E6%9D%A5%2C%E5%AE%9E%E5%9C%A8%E4%B8%8D%E4%BC%9A%E4%BA%86%2C%E8%B0%A2%E8%B0%A2%E8%8B%A5f%EF%BC%88x%2Cy+%29%3Dxy%2Cg%28x%2Cy%2Cz%29%3Dx%2By-z.%E6%B1%82f%28-%E4%B8%89%E5%88%86%E4%B9%8B%E4%B8%80%2C%E4%BA%8C%E5%88%86%E4%B9%8B%E4%B8%80%29-g%285%2C-3%2C4%29%E7%9A%84%E5%80%BC)
数学天才看过来,看过来,实在不会了,谢谢若f(x,y )=xy,g(x,y,z)=x+y-z.求f(-三分之一,二分之一)-g(5,-3,4)的值
数学天才看过来,看过来,实在不会了,谢谢
若f(x,y )=xy,g(x,y,z)=x+y-z.求f(-三分之一,二分之一)-g(5,-3,4)的值
数学天才看过来,看过来,实在不会了,谢谢若f(x,y )=xy,g(x,y,z)=x+y-z.求f(-三分之一,二分之一)-g(5,-3,4)的值
=(-1/3*1/2)-(5+(-3)-4)
=-1/6-(-2)
=11/6