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Question

If the equation x^2-bx+1=0 does not possess real roots. Then ______________

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Solution

The given equation is x2-bx+1 = 0.Comparing it with Ax2+Bx+C = 0, we getA = 1; B = b; C = 1Now, D = B2-4AC = b2-4 For no real roots, D <0b2 - 4 < 0b+2b-2 < 0-2 <b < 2

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