UPSC NDA 2 2016 Mathematics Solved Paper
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Question : 57 of 120
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If (a, b) is at unit distance from the line 8 x + 6 y + 1 = 0
1.3 a − 4 b − 4 = 0
2.8 a + 6 b + 11 = 0
3.8 a + 6 b − 9 = 0
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[NDA II 2016]
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