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Find the value of 'a' such that PQ=QR where P,Q,R are the points whose coordinates are (6,-1) ,(1,3) and (a,8) respectively A.-3 or 5B.5 or -3C.3 or 5D.-3 or -5

Answer» Find the value of 'a' such that PQ=QR where P,Q,R are the points whose coordinates are (6,-1) ,(1,3) and (a,8) respectively
A.-3 or 5
B.5 or -3
C.3 or 5
D.-3 or -5


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