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Find the quadratic equations whose roots are the reciprocals of the roots of 2x^2 + 5x + 3 = 0?
  1. 3x^2 + 5x + 2 = 0
  2. 3x^2 - 5x + 2 = 0
  3. 3x^2 - 5x - 2 = 0
  4. 3x^2 + 5x - 2 = 0
Explanation

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

=> 3x^2 + 5x + 2 = 0

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