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If a b c d e f
If a b c d e f pictures 5
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If a b c d e
If a b c d e f
if a b c d e f are position vectors of 6 points
if a b c d e f are in continued proportion
if a b c d e f is a regular hexagon
if a b c d e f are in ap
if a b c d e f are am between 2 and 12
if a b c d e f are in ap then e - c u003d