The roots of the equation ax2 + 3x + 6 = 0 will be reciprocal to each other if the value of a is	Answers:
A) 3
B) 4
C) 5
D) 6
E) 7
Explanation :   If roots of ax2 + bx + c = 0 are α and ß are roots then   =&gt; α + ß = b/a   and α × ß = c/a .   Now α = 1/ß.   Then α × ß = α and 1/ß × ß = 1 .   =&gt; c/a = 1   i.e. c = a.   Here, c = 6, so   a = 6.   Answer : 6
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The roots of the equation ax2 + 3x + 6 = 0 will be reciprocal to each other if the value of a is