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यदि समीकरण x^(2)-5x+15=0 के मूल alpha तथ...

यदि समीकरण `x^(2)-5x+15=0` के मूल `alpha` तथा `beta` हो तथा समीकरण `x^(2)+px+q=0` के मूल `alpha^(2)+beta^(2)` व `(alphabeta)/(2)` हो तब

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