the roots of alpha and beta of the quadratic equation x^2 -5x+3(k-1)=0, are such that (alpha-beta=11), find the value of k
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Answered by
2
The product of the roots is 3636, and the sum is kk. There are 55 ways to decompose 3636 as a product of positive factors, if order does not count, and an equal number of ways to decompose 3636 as a product of negative factors.
Thus there are 1010 possible values of kk.
Khushias:
just wait a min....wht????
No change in answer
A small mistake......
Only.....But the answer is same...
look...! u hve written. 121 = 37 - 12k
then, it would be 121 - 37 = -12k
so the ans would be ( -7)
Answered by
7
The value of k is 7.....But alpha + beta is -(-5) which is 5.....
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seems u hve done a mistake....alpha +beta would be +5
but thnks for the ans
its ans is -7
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