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)Ifthe roots of the following equation are real and equal, then find kkx (r -2)+ 60 |
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Answer» If the roots are real and equalhence discriminant is zerohenceb^2-4ac=0hencethe equation is kx^2-2kx+6=0comparing with standard equationax^2+Bx+c=0a=k b=-2k c=6henceb^2-4ac=4k^2-24k=0k(k-6)=0hencek=0k=6 |
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