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Question
Find the quadratic equations whose roots are the reciprocals of the roots of 2x2 + 5x + 3 = 0?
Options:
A .  3x2 + 5x - 2 = 0
B .  3x2 + 5x + 2 = 0
C .  3x2 - 5x + 2 = 0
D .  3x2 - 5x - 2 = 0
E .  None of these
Answer: Option B


The quadratic equation whose roots are reciprocal of 2x2 + 5x + 3 = 0 can be obtained by replacing x by 1/x.
Hence, 2(1/x)2 + 5(1/x) + 3 = 0
=> 3x2 + 5x + 2 = 0



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