# Mark the Correct alternative in the following:If the difference of the roots of is unity, thenA. B. C. D.

Difference of the roots

1

1

p2 – 4q = 1

p2 – 4q + 4q2 – 4q2 = 1

p2 + 4q2 = 1 + 2(2)(q) + (2q)2

p2 + 4q2 = (1 + 2q)2

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