Question

If z1 and z2 are the roots of the equation z2 +az +b = 0, then prove that the origin, z1 and z2 from an equilateral triangle if and only if

Solution

Correct option is

                    

Now, z1, zfrom an equilateral triangle

SIMILAR QUESTIONS

Q1

Let L be the straight line  and OA be the straight line joining O and A (a), then

Q2

Locus of point z so that z, i, and are z collinear, is

Q3

The number of roots of the equation 

Q4

The set of point in satisfying the inequality  is given by

Q6

The quadrilateral formed by the points with affix 0, z, z, iz and iz is

Q8

Sum of the common roots of 

Q9

If z1 and z2 lie on the same side the line