已知集合M={y | y = x2},N={y | x2+y2=2},则M∩N=

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已知集合M={y | y = x2},N={y | x2+y2=2},则M∩N=

已知集合M={y | y = x2},N={y | x2+y2=2},则M∩N=
已知集合M={y | y = x2},N={y | x2+y2=2},则M∩N=

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