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Which is correct? A.b.c.
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Which is correct? A.b.c.

Which is correct? A.b.c.-example-1
User Matt Passell
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By geometry, there is a relationship between the tangent PA and the segments PB and PE, namely
PA^2=PB*PE
so
PE=PA^2/PA=6^2/4=9
BE=PB-PE=9-4=5
User Vinko Vrsalovic
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