1.

If x = 2, y = 3 is a solution of a pair of lines 2x – 3y + a = 0 and 2x + 3y – b + 2 = 0 then (1) a = 3b (2) a + 3b = 0 (3) 3a + b = 0 (4) 3a = b

Answer»

Correct option is (4) 3a = b



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