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IF `alpha , beta ` are the roots of the equation `x^2+2ax +b=0` , then the quadratic equation with rational coefficient one of whose roots is ` alpha + beta + sqrt(alpha ^2+ beta ^2)` is

A

`x^(2)+ 4ax -2b =0`

B

`x^(2) + 4ax +2b=0`

C

` x^(2) -4ax +2b =0`

D

` x^(2) -4ax -2b=0`

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-Assignment (Section -B) (objective Type Questions ( one option is correct)
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