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If alpha and beta are the zeroes of the polynomial x²-5x+2 find the value of 1/alpha +1/beta -3 alpha ×beta

Posted by Brunda Shree S 1 week, 6 days ago

CBSE > Class 10 > Mathematics

2 answers

Bhavyansh Dangi 1 week, 6 days ago

Alpha - a ,, Beta - b ,, a+b = 5 ,, ab = 2 ,, 1/a +1/b = a+b/ab = 5/2 ,, Ans = 5/2 - 3(2) = -11/2

Bhavyansh Dangi 1 week, 6 days ago

Alpha - a Beta - b a+b = 5 ab = 2 1/a +1/b = a+b/ab = 5/2 Ans = 5/2 - 3(2) = -11/2

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