if aplha and beeta are the zeroes of the polynomial x2-x--k such that aplha-beeta=9. find k
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Answered by
1
A + B = -(-1)/1 = 1
and A - B = 9
so, 2A = 10
and A = 5
B = -4
so, AB = -K = -20
K = 20........
and A - B = 9
so, 2A = 10
and A = 5
B = -4
so, AB = -K = -20
K = 20........
Answered by
1
I dont think that is alpha - beeta = 9 it may be alpha +beeta = 9
where there is formula :
Alpha +beeta = -b/a
where there is formula :
Alpha +beeta = -b/a
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