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If roots of the equation x^2-10cx-11d=0 ...

If roots of the equation `x^2-10cx-11d`=0 are a,b and those of `x^2-10ax-11b`=0 are c,d,then the sum of the digits of a+b+c+d must be equal to (a,b,c and d are distinct numbers)

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CENGAGE PUBLICATION-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
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