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 :

jbmow
jbmow jbmow
  • 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

what is 5 x + 3 + 3x
what triggers puberty in males
If a potential source presents any kind of bias, it should automatically be ruled out. a. True b. False
Stimulants are designed to stimulate the central nervous system. a.true b.false
BD is diagonal of square ABCD if m angle abd = (5x-10) find x
What caused european cities to grow around the year 1000?
What strategy does the author of the essay "Reading Shakespeare" suggest will help you understand difficult lines in Shakespeare's plays?
Find the value of m. (5m+100)° (2m+10)° A.10 B.30 C.70 D.150
If a reader wants to evaluate a text, which is the best question to ask while reading it? a.how does this text affect me and what i want to say to the world? b.
Find two numbers whose difference is 80 and whose product is a minimum.