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What will be the value of k, so that the roots of the equation are x2 + 2kx + 9 are imaginary?

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The section contains multiple choice questions and answers on roots types determination, quadratic equation solutions by using factorisation and squaring method.


What will be the value of k, so that the roots of the equation are x<sup>2</sup> + 2kx + 9 are imaginary?






 
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