已知集合M={y | y = x2},N={y | x2+y2=2},则M∩N=
问题描述:
已知集合M={y | y = x2},N={y | x2+y2=2},则M∩N=
答
M={y|y>=0},N={y|-根2
已知集合M={y | y = x2},N={y | x2+y2=2},则M∩N=
M={y|y>=0},N={y|-根2