loricurnell69 loricurnell69
  • 03-06-2017
  • Mathematics
contestada

Write the complex number in polar form. Express the argument in degrees. 4i

Respuesta :

mreijepatmat
mreijepatmat mreijepatmat
  • 03-06-2017
Write 4i in the following form r(cos Ф + I sin Ф)

Since it's 4i, that means 4 is on the y-axis, So r =4 and Ф =90°


Hence the equation is 4(cos 90° + i sin 90°)

Proof: cos 90° = 0 and sin 90° =1
4[0 + i(1)] = 4i
Answer Link

Otras preguntas

EACH CUBE IN FIGURES A AND HAS A VOLUME B
Ms. Claire and Ms Regine ____ my subject teachersa. are b. is Atticus____ my former classmate a. wasb. were The other kids on the team_____ to my schoola. goes
Jarek is short of his sales goal this month. He knows if he adds small items to his customer's orders, they most likely won't notice the small increase and then
the fatty acid chain of the lipids is often referred to as a hydrocarbon chain.
Economic aspects determine the life standard, how?​
Many of the technological changes occurring in the early and mid-20th century were integral for the development of pop music True False
Where does the line of demarcation fall on the difference between cool and warm colors? Be specific.
-2x2 – 3x + 1 for x = -3
Why must the government be formed this way?
Amelia makes necklaces using beads and wire. She starts with 6 feet of wire. How many necklaces can she make?​