If m and n are the roots of the equation x2-3x+4=0 then find (m+n)(mn) and1÷m+1÷n
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x^2 -3x +4=0
x=(3+- square root(9-4*4))/2
x=(3+-square root(-7))/2
x= (3+7i)/2 , (3-7i)/2
1/m +1/n =2/(3+7i) + 2(3-7i) = 6/29
(m+n)(mm) = (9+49)/4 *(3) =87/2
x=(3+- square root(9-4*4))/2
x=(3+-square root(-7))/2
x= (3+7i)/2 , (3-7i)/2
1/m +1/n =2/(3+7i) + 2(3-7i) = 6/29
(m+n)(mm) = (9+49)/4 *(3) =87/2
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