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1-i/2+iGive the sum and the product of the roots of 6m^2-4m-9=0

2007-12-11 17:49:32 · 2 answers · asked by ladybuggy 1 in Science & Mathematics Mathematics

2 answers

m = [ 4 ± √(16 - 216) ] / 12
m = [ 4 ± √(- 200) ] / 12
m = [ 4 ± √ ( 200 i ² ) ] / 12
m = [ 4 ± i 10√ 2 ] / 12
m = [ 2 ± i 5√ 2 ] / 6

2007-12-12 03:47:18 · answer #1 · answered by Como 7 · 2 0

6m^2-4m-9=0
m^2-(2/3)m-(3/2)=0

(m-a)(m-b) = m^2-(a+b)m+ab
Sum of roots = a+b = 2/3
Product of roots = ab = 3/2

2007-12-12 02:02:45 · answer #2 · answered by Gerico 3 · 0 1

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