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If the straight line ax+by+c=0 always pa...

If the straight line `ax+by+c=0` always passes through (1, -2), then a, b, c are in:

A

H.P

B

A.P

C

G.P

D

none of these

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The correct Answer is:
B
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HIMALAYA PUBLICATION-COORDINATE SYSTEMS, LOCUS AND STRAIGHT LINES-QUESTION BANK
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