The value of a for which the lines x=1 ,y=2 and ax+2y-6 =0 are concurrent is
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Given, x = 1 y = 2
equation : ax + 2y - 6 = 0
♦ a ( 1 ) + 2 ( 2 ) - 6 = 0
♦. a + 4 - 6 = 0
♦. a = 2
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