kristagato1018 kristagato1018

02-10-2016
Mathematics

contestada

Find the product of the complex number and it's conjugate.

9-5i

Respuesta :

Patronus1619 Patronus1619

02-10-2016

conjugate of 9-5i is 9+5i
product of those two: (9-5i)*(9+5i) = [tex] 9^{2} - (5i)^{2} =81-25* i^{2} =81-25*(-1)=81+25=106[/tex]

Answer Link

Otras preguntas

U = {1, 2, 3, 4, 5, 6, 7, 8} A = {1,3,5} B = {1,4,6} AUB =

Read the following passage.Paul's PaintingsOnce, in Switzerland, there lived a boy. His name was Paul Klee, and he lived in a world full of music and color. His

After vigorous activity, your heart rate declines 7 beats per minute. How much would your heart rate decline within an 8-minute period?

Although the specific effects of many drugs vary, can they alter a person's mental state? A. No, they don't tend to. B. No, they don't at all. C. Yes, they can.

A flower is an example of _______________? (Select the best answer.) Question 2 options: Water Soil Fauna Flora Air

Hi can you help please :)

A student wants to draw a model of an atom. Which statement describes how to find the number of neutrons to include in the model? A. Add the atomic number and t

Describe and evaluate Abigail Adams’s personality.

What are the differences between primary and secondary sources?

Mixed economies are those that involve a mixture of which elements? A. barter and trade B.custom and habit C.supply and demand D. market and command