/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q26P Find the values of the indicated... [FREE SOLUTION] | 91Ó°ÊÓ

91Ó°ÊÓ

Find the values of the indicated roots.

i5

Short Answer

Expert verified

The values of the complex number i5are;

localid="1658739348545" z0=0.95+0.31iz1=iz2=-0.95+0.31iz3=-0.588-0.81iz4=0.588-0.81i

Step by step solution

01

Given Information

The given expression is i5.

02

Definition of the complex number

Complex numbers are represented in terms of real numbers and imaginary numbers; a complex can be written in the form of:

z=a+ib

Here a and b are real numbers, and i is the imaginary number which is known as iota, whose value is -1.

03

Solving the Equation

Let z = i

The exponential form of z is given by z=r×eθi.

The root is zk=r1nexpθki.

Where k = 0,1,2,3,4

And n = 5

Angle θkis written as θk=Ï€2+2Ï€°ìn.

Find the roots of the complex number z for different values of θ.

Solve z and θfor k=0,1.

θ0=Ï€10z0=eÏ€¾±/10θ1=Ï€2z1=e(Ï€¾±/2)

Solve z and θfor k = 2,3 .

θ2=9Ï€10z2=e(9Ï€¾±/10)θ3=13Ï€10z3=e13Ï€¾±/10

Solve z and θfor k = 4.

Ï‘4=17Ï€10z4=e17Ï€¾±/10

04

Solving the Cartesian form of root

Solve forz0

z0=cosπ10+isinπ10=0.95+0.31i

Solve forz1.

localid="1658739180865" z1=cosπ10+isinπ10=i

Solve for z2.

z2=cos9Ï€10+isin9Ï€10=-0.95+0.31iz2=cos9Ï€10+isin9Ï€10=0.95+0.31i

Solve for z3.

role="math" z3=cos13Ï€10+isin13Ï€10=-0.588-0.81i

Solve forz4.

z4=cos17Ï€10+isin17Ï€10=-0.588-0.81i

Hence, the values of the complex number i5are;

z0=0.95+0.31iz1=iz2=-0.95+0.31iz3=-0.588-0.81iz4=0.588-0.81i

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91Ó°ÊÓ!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Test each of the following series for convergence.

∑1+in2

Follow steps (a), (b), (c) above to find all the values of the indicated roots -13.

Express the following complex numbers in the form. Try to visualize each complex number, using sketches as in the examples if necessary. The first twelve problems you should be able to do in your head (and maybe some of the others—try it!) Doing a problem quickly in your head saves time over using a computer. Remember that the point in doing problems like this is to gain skill in manipulating complex expressions, so a good study method is to do the problems by hand and use a computer to check your answers.

17.11+i3

Express the following complex numbers in the x+iyform. Try to visualize each complex number, using sketches as in the examples if necessary. The first twelve problems you should be able to do in your head (and maybe some of the others—try it!) Doing a problem quickly in your head saves time over using a computer. Remember that the point in doing problems like this is to gain skill in manipulating complex expressions, so a good study method is to do the problems by hand and use a computer to check your answers.

9.2e-iπ/2

Express the following complex numbers in the x+iy form. Try to visualize each complex number, using sketches as in the examples if necessary. The first twelve problems you should be able to do in your head (and maybe some of the others—try it!) Doing a problem quickly in your head saves time over using a computer. Remember that the point in doing problems like this is to gain skill in manipulating complex expressions, so a good study method is to do the problems by hand and use a computer to check your answers.

18.1+i1−i4

See all solutions

Recommended explanations on Physics Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.