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Write the value of alpha + beta and alp...

Write the value of `alpha + beta ` and `alpha beta `, if (i) `a = 3, b = 6 , c = 9 ` (ii) `a = 2, b = - 8 , c = 5 `

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The correct Answer is:
(i) ` -2;3` (ii) `4, (5)/(2)`
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