Find the acute angle between the pair of
lines represented by the following equations.
(1) x2 - 7xy + 12y2 = 0
(ii) y2 - xy - 6x2 = 0
(iii) (xcosa – ysina)² = (x² + y²) sin’a
(iv) x² + 2xy cota - y² = 0.
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Answer:
equations.
(1) x2 - 7xy + 12y2 = 0
(ii) y2 - xy - 6x2 = 0
(iii) ( = (x²
(iv) x² + 2xy cota - y² = 0.
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