If one root of the equation 4x² + 2x-1=0 is a , then other root is
(a) 2a
(b) 4a^3-3a
(c) 4a^3+3a
(d) None of these
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Let the required root be x
We know sum of roots is -b/a
Therefore,
-1/2 = a + x
-1-2a/2 = x
Therefore answer is (d) None of these
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