设集合A={x-y,x+y,xy},B={x²+y²,x²-y²,0},若A=B
设集合A={x-y,x+y,xy},B={x²+y²,x²-y²,0},若A=B
设集合A={x-y,x+y,xy},B={x²+y²,x²-y²,0},且A=B
1、设集合A={x—y,x+y,xy},B={x²+y²,x²—y²,0},且A
设A=2x²-3xy+y²-x+2y,B=4x²-6xy+2y²-3x-y,若x
设集合A={x-y,x+y,xy}B={x²+y²,-x²-y²,0}若A=B求
设A=2X²-3xy+y²-x+2y,B=4x²-6xy+2y²-3x-y,若|
设A=2x²-3xy+y²-x+2y,B=4x²-6xy+2y²+3x-y 若|
设A=2x²-3xy+y²-x+2y,B=4x²-6xy+2y²-3x-y,若│
设x,y都是实数,分析下列四个集合:A={y丨y=x²+1} B={xy=x²+1}
设集合A={ (x,y) | y=x² },集合B={ (x,y) | y=1} ,求A∩B.
设XY∈R集合A={(x,y)|x²-y²=1},B={(x,y)|y=t(x+2)+3},若A∩B
设集合A={y|y=x²+3,x∈R},B={y|y=-x²+10,x∈R},求A∩B.