boedipscope boedipscope

04-08-2017
Mathematics

contestada

The quadratic equation x2 + mx + q = 0, where m and q are real numbers, has the complex root a + bi.?

Respuesta :

04-08-2017

Remember the quadratic formula determinant?
If b^2 -4ac < 0, a complex root exists.

So for this problem, m^2 - 4q is the determinant, and if less than 0, is complex.

So a=-m/2 and b=(1/2)SQRT(m^2 - 4q)

Answer Link

Otras preguntas

express the ratio as a fraction in it's lowest term.2mm:100cm

In how many ways can u arrange the letters of the word MATHEMATICS taking three letters at a time?

aromatic compounds aliphatic compounds

[tex]\text{Solve for 'x'.}\\\\3x + 15 = 33\\\\\\text{Thank you.}[/tex]

You are doing research on balance and fitness. To complete this research you will need a watch with a second hand. Identify a random sample of n = 12 men and n

In the given figure, ∠QPR = ?

draw the flow chart of production of silk from silk mothplease help....no links or get reported

Arrange Cu, Ca, Na, Zn and Au on the basis of their decreasing reactivity.

Graph: y = (x + 3)2 – 4 Which values are solutions of the quadratic equation 0 = (x + 3)2 – 4? Check all that apply. y X -4 WIEC 6 0 -5 -4 . 0 -3 -1 -6 -4 -2 2

what are condition for formation of electrovalent bond