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[单选题]
已知点(-4,y1),(2,y2)都在直线y=-x+2上,则y1,y2大小关系是()
A.y1>y2
B.y1=y2
C.y1 D.不能比较
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![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.y1>y2
B.y1=y2
C.y1 D.不能比较
A.y2>y1>y3
B.y2>y3>y1
C.y1>y2>y3
D.y3>y2>y1
A.(1)m= ,k=
B.(2)求两直线交点D的坐标
C.(3)根据图象直接写出y1<y2时自变量x的取值范围
方向传播,它在C点的振动方程为y2=0.2x10-2cos(2πt+π) (m),如图所示.P处与B相距0.4m,与C相距0.5m,波速为0.2m·s-1.求:(1)两波传到P处的相位差;(2)在P处合振动的振幅.
A.console.log(test.x3.y1)
B.console.log(test[0].x3.y1)
C.console.log(x3.y1)
D.console.log(y1)
A.y1<y2<y3
B.y2<y3<y1
C.y3<y1<y2
D.y3<y2<y1