Solve for y if the distance between the two points (2,8) and (-6,y) is 17.
第1题
A.solve(x^2+2*x+1,x)
B.solve(x^2+1,x)
C.solve(x+y+1,x+3*y,x,y)
D.solve(x^2*sin(x)-1,x,0)}
第2题
A.solve(x^2+2*x+1,x)
B.solve(x^2+1,x)
C.solve(x+y+1,x+3*y,x,y)
D.solve(x^2*sin(x)-1,x,0)}
第3题
A.Solve[{4x^2-9y^2==15,2x-3y==5},{x,y}]
B.Solve[4x^2-9y^2==15,2x-3y==5,{x,y}]
C.Solve[4x^2-9y^2==15,2x-3y==5,{x,y}]
D.Solve[{4x^2-9y^2==15,2x-3y==5}]
第4题
A.Solve[(y-3)^3+(y+3)^3==9y(1-2y)]
B.Solve[(y-3)^3+(y+3)^3==9y(1-2y),y]
C.Solve[(y-3)^3+(y+3)^3=9y(1-2y),y]
D.NSolve[(y-3)^3+(y+3)^3==9y(1-2y),y]
第5题
A.solve(x^2+2*x+1,x)
B.solve(x^2+1,x)
C.solve(x+y+1,x+3*y,x,y)
D.solve(x^2*sin(x)-1,x,0)}
第6题
A.solve(x^2+2*x+1,x)
B.solve(x^2+1,x)
C.solve(x+y+1,x+3*y,x,y)
D.solve(x^2*sin(x)-1,x,0)}
第7题
A.Solve[{4x^2-9y^2==15,2x-3y==5},{x,y}]
B.Solve[4x^2-9y^2==15,2x-3y==5,{x,y}]
C.Solve[4x^2-9y^2==15,2x-3y==5,{x,y}]
D.Solve[{4x^2-9y^2==15,2x-3y==5}]
第8题
A.Solve[(y-3)^3+(y+3)^3==9y(1-2y)]
B.Solve[(y-3)^3+(y+3)^3==9y(1-2y),y]
C.Solve[(y-3)^3+(y+3)^3=9y(1-2y),y]
D.NSolve[(y-3)^3+(y+3)^3==9y(1-2y),y]
第9题
A.Solve[(x^2+1)y"[x]==2x*y'[x],y[x],x]
B.DSolve[(x^2+1)y" [x]=2x*y'[x],y[x],x]
C.DSolve[(x^2+1)y" [x]==2x*y'[x]]
D.DSolve[(x^2+1)y" [x]==2x*y'[x],y[x],x]
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