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Prove that the lines 2 x−3 y+1=0, x+y=3, 2 x−3 y=2 and x+y=4 form a parallelogram. |
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Answer» Prove that the lines 2 x−3 y+1=0, x+y=3, 2 x−3 y=2 and x+y=4 form a parallelogram. |
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