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If 1 2
If 1 2 pictures 5
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If 1 2
if 1 2 is the centroid of an equilateral triangle
if 1 2 3 are the roots of ax3+bx2+cx+d
if 1 2 are vertices of a parallelogram
if 1 2 3 are first term
if 1 2 3
if 1 2 4 y are the vertices of a parallelogram
