Question

Let a, ß be the roots of the equation
x? – ax + b = 0 and A. = a" + B".
Then find the value of An + - A + A-1​

Answer 1

Answer:

Answer:

The value of a and b are either a=0,b=0 or a=1, b=-2.

Step-by-step explanation:

If a quadratic equation is defined as and α and β are roots, then

         ....(1)

            .... (2)

The given equation is

The a and b are roots of quadratic equation. Using equation (1) we get

                     ... (3)

Using equation (2), we get

Equate each factor equal to 0.

If b=0, then by equation (3) a=0.

If a=1, then by equation (3) b=-2.

Therefore the value of a and b are either a=0,b=0 or a=1, b=-2.

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