Find the equation of the line passing through the point of intersection of 4x-3y+2=0 and 6x+5y+6=0 and the point of intersection of lines 4x-3y-17=0 and 2x+3y+5=0
In △BAC, Angle BAC= 90°, segment AD, seg BE and seg CF are medians. Prove: 2(AD²+BE²+CF²)=3BC²
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