NoodleHurt
NoodleHurt NoodleHurt
  • 02-12-2021
  • Mathematics
contestada

COMPLEX NUMBERS AND DEMOIVRE'S THEOREM: HELP ASAP

COMPLEX NUMBERS AND DEMOIVRES THEOREM HELP ASAP class=

Respuesta :

sihanamritsingh
sihanamritsingh sihanamritsingh
  • 02-12-2021

Answer:

a = 0, b = -15

Step-by-step explanation:

Given two complex number Z1=3cispi and z2=5cis(pi/2)

In polar form;

z1 = 3(cospi + isinpi)

z1 = 3(-1+i0)

z1 = -3+0i

Z2 =  5(cospi/2 + isinpi/2)

Z2 = 5(0+i)

Z2 = 0+5i

Z1*Z2 =  (-3+0i)(0+5i)

Z1*Z2 = 0 - 15i +0i + 0i²

Z1*Z2 = 0-15i

comparing 0-15i with a + bi;

a = 0 and b = -15

Answer Link

Otras preguntas

Which personal liberties are restricted under fascism?
I WILL MAKE YOU THE BRAINLLESTWhich description matches the graph of the inequality y ≤ 2x – 1? A.a shaded region below a solid boundary line B.a shaded region
I NEED HELP PLEASE, THANKS! Explain why convex mirrors can only produce virtual images.
X-rays can cross most materials except
Assume the time required to complete a product is normally distributed with a mean 3.2 hours and standard deviation .4 hours. How long should it take to complet
3. Factor the expression.d2 + 120 + 36A (d + 6)2B (d - 36)(0 - 1)OC (d - 6)2D (d + 6)(d - 6)​
need help with maths question hope you can help
Two circular coils are concentric and lie in the same plane. The inner coil contains 170 turns of wire, has a radius of 0.012 m, and carries a current of 6.2 A.
explain why the solution to the absolute value inequality |4x-9|>-12 is all real numbers
7. A company manufactures shaving sets for $5 each and sells them for $7 each. How many shaving sets must be sold for the company to recover an initial investem