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  •  If a, b, c are in A.P., then ax + by + c = 0 representsOption: 1 a single lineOption: 2

 If a, b, c are in A.P., then ax + by + c = 0 represents

Option: 1

a single line


Option: 2

a family of concurrent lines


Option: 3

a family of parallel lines


Option: 4

none of these


Answers (1)

best_answer

Since a, b, c are in A.P.  \Rightarrow 2 \mathrm{~b}=\mathrm{a}+\mathrm{c}
a-2 b+c=0 \Rightarrow family of lines is concurrent at the point (1, – 2)

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SANGALDEEP SINGH

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