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Show that the following equation represent a pair of lines.   Find the acute angle between them : 2x^2 + xy – y^2 + x + 4y – 3 = 0

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Show that the following equation represent a pair of lines.  

Find the acute angle between them :

2x2 + xy – y2 + x + 4y – 3 = 0

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Best answer

Comparing this equation with

∴ the given equation represents a pair of lines. 

Let θ be the acute angle between the lines.

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