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

Question

03-06-2017
Mathematics

contestada

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

Respuesta :

Otras preguntas

Which power does the president have as chief executive? Question 3 options: enforce laws passed by state legislatures issue orders that spell out policy details

An accomplishment of the Lewis and Clark expedition was that it

How many factors does the number 52 have?

will give brainliest to first correct answer! find missing length indicated

The first night in a hotel costs 60 dollars. All additional nights cost 49 dollars. How many nights did we stay at this hotel if the total bill was 501 dollars?

what is the answers fo this f(2) if f(x)=2x-5

Why do you think it is important to have a diverse number of careers to choose from? How would it affect our global economy if there were only one or two career

4. Mary wants to select one shirt (white, red, black), one pant (capri, skinny), and one footwear (shoes, boots). Which outcome is not possible? * A white shirt

Which one of the following was not a Protestant Reformer? Martin Luther John Knox John Calvin Ignatius Loyola

mreijepatmat mreijepatmat · Answer 1 · 2017-06-03T04:42:19+02:00

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