1.

Find the combined equation of the following pairs of lines:x + 2y – 1 = 0 and x – 3y + 2 = 0

Answer»

The combined equation of the lines x + 2y – 1 = 0 and x – 3y + 2 = 0 is

(x + 2y – 1)(x – 3y + 2) = 0

∴ x2 – 3xy + 2x + 2xy – 6y+ 4y – x + 3y – 2 = 0

∴ x2 – xy – 6y2 + x + 7y – 2 = 0.



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