If e is the acute angle between the pair of lines x² + 3xy - 4y2 =0 then sino =
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your answer is 42 you can check it is the write answer
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Given 3x2 – 7xy + 4y2 = 0
Comparing with general equation, we get a = 3, h = -7/2, b = 4
tan θ1= |(2√(49/4 – 12)/(3 + 4)|
= |(2√(1/4)/7|
= 1/7
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