Pre-Calculus, 9th edition
11

 PAGE: 588 SET: Exercises PROBLEM: 11

The complex number is .

The rectangular coordinates corresponding to the  is .

Graph:

Plot the complex plane.

The point  is located at first quadrant.

.

The polar form of a complex number  is .

Where  and .

Here  is the magnitude of the complex number and  is argument of .

Compare the complex number  with  .

Magnitude .

Here,  and .

Substitute  and in polar form.

.

The polar form of the complex number  is .

Plot of the complex number is

The polar form of the complex number  is .

TESTIMONIALS
 "I want to tell you that our students did well on the math exam and showed a marked improvement that, in my estimation, reflected the professional development the faculty received from you. THANK YOU!!!" June Barnett "Your site is amazing! It helped me get through Algebra." Charles "My daughter uses it to supplement her Algebra 1 school work. She finds it very helpful." Dan Pease
 Tweets by @mathskeydotcom

QUESTIONS? LET US HELP.