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Quadratic Equation
Consider the equation px2 + qx + r = 0, where p, q, r are real. The roots are equal in magnitude but opposite in sign when :
q = 0, r = 0, p ≠ 0
p = 0, qr ≠ 0
r = 0, pr ≠ 0
q = 0, pr ≠ 0
Correct Answer:
q = 0, pr ≠ 0
Explanation:
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