A(-1,3), B(7,-3), and C(4,1), prove that AB=2BC
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AB= { [7-(-1)]²+[-3-3]²}^½
={ [8]²+[-6]²} ^½
= {64+36} ^½={100}^½=10... Ans(1)
BC= { [4-7]²+[1 +3]²}^½
= { [-3]²+[4]²}^½
= { 9+16}^½
= (25)^½
=5....Ans(2)
So, AB=2BC
={ [8]²+[-6]²} ^½
= {64+36} ^½={100}^½=10... Ans(1)
BC= { [4-7]²+[1 +3]²}^½
= { [-3]²+[4]²}^½
= { 9+16}^½
= (25)^½
=5....Ans(2)
So, AB=2BC
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