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[" 14.The plane "x+2y-z=4" cuts the sphe...

[" 14.The plane "x+2y-z=4" cuts the sphere "],[x^(2)+y^(2)+z^(2)-x+z-2=0" in a circle of radius "],[[" 1) "3," 2) "1],[" 3) "2," 4) "sqrt(2)]]

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