P=(3,4),Q=(7,7) ,PR=10 where P,Q,R are collinear;R=?
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In relation to the sea, where do most people in Northern Europe live.
In relation to the sea, where do most people in Northern Europe live.
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it is not correct for class 10 level...
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PQ+QR=PR
=> (3^2+4^2)+[(x-7)^2+(y-7)^2] =10
=>5+x^2-14x+49+y^2-14y+49=10
=>103 -14(x+y) + x^2+y^2=10
=>93 + x2+y2
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