已知x,y满足x^2+y^2=4,求S=3x-y的最值.试卷题错了,
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/10 00:34:55
![已知x,y满足x^2+y^2=4,求S=3x-y的最值.试卷题错了,](/uploads/image/z/1978512-24-2.jpg?t=%E5%B7%B2%E7%9F%A5x%2Cy%E6%BB%A1%E8%B6%B3x%5E2%2By%5E2%3D4%2C%E6%B1%82S%3D3x-y%E7%9A%84%E6%9C%80%E5%80%BC.%E8%AF%95%E5%8D%B7%E9%A2%98%E9%94%99%E4%BA%86%2C)
x){}K+t*^b8#8#[gm+t+jy6i>rьSf>զcTO`
P!Fřy%:F@X<""Xiabggj
ӴE$ف v#m
已知x,y满足x^2+y^2=4,求S=3x-y的最值.试卷题错了,
已知x,y满足x^2+y^2=4,求S=3x-y的最值.
试卷题错了,
已知x,y满足x^2+y^2=4,求S=3x-y的最值.试卷题错了,
x=2sin(t),y=2cos(t)
S=6sin(t)-2cos(t)
S(max)=(40)^0.5;
S(min)=-(40)^0.5;