1.

From the equations which representsthe following Pair of lines x = y , x + 2y + 5 = 0

Answer»

Solution :x = y , x + 2y + 5 = 0
`therefore` (x =-y) ( x + 2y + 5 )= 0
or, `x^2 + 2XY + 5x - XY - 2y^2 - 5y = 0
or, `x^2 - 2y^2 + xy + 5x - 5y = 0
which REPRESENTS a PAIR of lines.


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