The angle between two lines 3x + y – 7 = 0 and x + 2y + 9 = 0 will be

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59th BPSC Prelims Solved Paper-2015 — practice the complete quiz, review flashcards, or try a random question.


The angle between two lines 3x + y – 7 = 0 and x + 2y + 9 = 0 will be