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यदि x=1 समीकरण ax^(2)+ax+2=0 तथा x^(2)+x...

यदि `x=1` समीकरण `ax^(2)+ax+2=0` तथा `x^(2)+x+b=0` का एक उभयनिष्ठ मूल है, तो `ab =`

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