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compares Cartesian -coordinates of and . | ||
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compares Cartesian -coordinates of and . |
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compares the -coordinates of and the intersection of lines and , see (a) in the figure above. | ||||
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compares the -coordinates of the intersection of line with line and with line , see (b) in the figure above. | ||||
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compares the -coordinates of the intersection of lines and and the intersection of lines and , see (c) in the figure above. |