1. Ifa, b, c are in A.P., then prove that the straightline ax+ by+c 0 – InterviewSolution

1.	1. Ifa, b, c are in A.P., then prove that the straightline ax+ by+c 0 will always pass through thepoint (1,-2)8.
Answer» If a,b,c are in A.P thena + c = 2 b=> a − 2 b + c = 0=> ax + by + c = 0it passes through (1, − 2)

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