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The line passing through the points (5, ...

The line passing through the points (5, 1, a) and (3, b, 1) crosses the yzplane at the point `(0,(17)/2,(-13)/2)` .Then (1) `a""=""2,""b""=""8` (2) `a""=""4,""b""=""6` (3) `a""=""6,""b""=""4` (4) `a""=""8,""b""=""2`

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