Guest Post | Submit   Job information   Contents   Link   Youtube Video   Photo   Practice Set   Affiliated Link   Register with us Register login Login
Join Our Telegram Group Join Our Telegram Group https://t.me/educratsweb

Does Complex Numbers / Imaginary number i exists??

Posted By educratsweb.comStudy Material 🗓 Sunday November 17 2019 👁 185

Does Complex Numbers / Imaginary number i exists??

Does Complex Numbers / Imaginary number i exists??

People studying Higher Mathematics are often confused with the existence of Complex Numbers and its Imaginary number “i”.

What are Complex Numbers:
Complex Numbers are numbers whose 1st part is Real while 2nd part is Imaginary and is expressed as a+bi
where
a –> Real Part
bi –> Imaginary Part and
i –> � √ -1�

wait � √ -1  ….SmileySmiley Is it POSSIBLE ??

Reason of Confusion:

  • In schools and colleges everyone has learnt that we cannot have square root of Negative numbers i.e. √� negative number� doesnot exists. Then how it is possible to have √ -1� .
  • Moreover “i” is called as Imaginary Number hence i is often considered as it does not exists and was used just for theory but if it is really imaginary then how it is used in Real Life Mathematics? How “i” and Complex Numbers can be used in Real Life Exmaples?

Quite Correct !!! But then my question is does our day-to-day used numbers like 0-9, π, 1/3, √� 2� , etc. exists?
All the numbers are Human Creation for making life of us Simpler and all the numbers took 100’s & 1000’s of years for approval and to be consistently used.

Brief History of Numbers:
Initially Romans used numbers only from 1-9 i.e. without any ‘0’.

Complex Number_Number System without Zero

Number System without Zero

Zero: But then Indians introduced ‘0’ and when this new number went to Europe it was not accepted for 100’s of years. Reason was simple Europeans were very comfortable with 1-9 for their transactions but as years progressed they realized the importance of ‘0’ which makes solving certain equations in simple manner and started accepting it.

Complex Number_Number System with Zero

Number System with Zero

Fractions: Today fractions are widely used across all fields. But can fractions exists for all items?? NO… we cannot have 11⁄2 men … right ?? but we can definitely have 21⁄3 apples. Also to solve equations like 2x = 1, fractions were required and hence for convenience fractions gradually became part of our number system.

Complex Number_Number System with fractions

Number System with Fractions

Negative Numbers: Like fractions even negative numbers for certain items doesn’t exists. We cannot have -20 trees or -2 people. But to solve equation like x+20 =0, we need negative numbers. x= -20 means debt of 20 items. Even negative numbers were not included in number system before but gradually people started understanding of them and started using them and also included them in our number system.

Complex Number_Number System with Negative Numbers

Number System with Negative Numbers

Irrational Numbers: There are certain numbers  like� √ 2� , π which cannot be expressed as fractions and
hence cannot fit anywhere in above number system.
But certain equations like x2=2 generates certain numbers,
called as Irrational Numbers, which are required to placed somewhere in our
Number System else it wont be possible to have solutions for x2=2.

Complex Number_Number System with Irrational Numbers

Number System with Irrational Numbers

Vinculum Numbers: Vinculum numbers are from Vedic Mathematics where atleast 1 digit is negative. Sounds strange how can any digit in a number can be negative but Vinculum Numbers does make solving problems in short time. Another great example of convenience. Visit Vinculum Numbers for more details.

So as seen above we used 0, negative numbers, Irrational, Vinculum numbers, etc. all these numbers are Human Creation and were invented to have solution to every problem/equation and not to forget to make life of human being simpler.

Mathematics is Invention not Discovery. Just like an airplane or a flying machine which was invented as small invention as gliders. But gradually with modifications and for human convenience flying machine could carry from few people to around 200 people from 1 continent to another and making possible even to go in our milky way.
Same way is Mathematics — Invention, Modification and Addition.

Arrival of Complex Numbers: Similarly to make certain equations solvable like x2 = -1, Complex Numbers were introduced. To solve certain polynomial equations we often come across square root of negative numbers and without the concept of Complex Numbers we would end up in Dead End. Same thing had happened to Greek Mathematician “Heron“. While calculating volume of some frustum of a cone he came across √� 81 – 144� but unaware what to be done with √� negative number� ,
he left the calculation there itself.

Number System with Complex Numbers

Number System with Complex Numbers

The imaginary word in complex numbers is the reason for confusion but these complex numbers does exists in same manner as other regular numbers exists.

So as seen above our Number System is indeed a 2 dimensional system and there might be every possibility that some another number might get add up to our Number System making it to a 3 – Dimensional Number System. Any idea which can be that number ???

Contents shared By educratsweb.com
if you have any information regarding Job, Study Material or any other information related to career. you can Post your article on our website. Click here to Register & Share your contents.
For Advertisment or any query email us at bharatpages.in@gmail.com

RELATED POST
Dudhani Resort Silvassa Government Guest House Neertal Tourist Complex Dadra & Nagar Haveli Drive Dudhani Resort Silvassa Government Guest House Neertal Tourist Complex Dadra & Nagar Haveli Drive #Khesari Lal ka new movie Coolie Number 1 Bhojpuri download Karen movie original print Mein full HD #Khesari Lal ka new movie Coolie Number 1 Bhojpuri download Karen movie original print Mein full HD The Soul touching number of #Bhupen #Hazarika #Dil hoom hoom kare ....The Soul touching number of #Bhupen #Hazarika #Dil hoom hoom kare ....
IBPS CLERK PRE 2018 | Easy Trick | CUBE OF A NUMBER | ARUN SIRIBPS CLERK PRE 2018 | Easy Trick | CUBE OF A NUMBER | ARUN SIR Aptitude Made Easy - How to solve Number Series problems in seconds? Reasoning Math tricksAptitude Made Easy - How to solve Number Series problems in seconds? Reasoning Math tricks
  1. Banking and Finance terms in India
  2. Download Complete UPSC Notes (Hindi Medium) GS-I GS-II, GS-III & GS-IV
  3. Question & Answer (useful for various examinations)
  4. मौर्य काल: एक नजर में
  5. Notes on History
  6. Nervous System | Notes on Biology
  7. UNIX Introduction
  8. Railway Group D Paper 2018
  9. पंचायती राज से संबंधित महत्वपूर्ण प्रश्न उत्तर
  10. Important Commissions and Committees in India.
  11. Earthquake
  12. updated Current Affairs (अद्यतन सामयिकी)
  13. ccc online test
  14. JEE Main Online Question Papers & Answer keys (2014-2017)
  15. Best Magazines for IAS Exam Preparation
  16. Council of Ministers
  17. RRB ALP Answer Key 2018
  18. GK Questions asked in RRB NTPC 2016
  19. Notes on Chemistry
  20. Tips For Students: How to Take Good Notes for Studying
Save this page as PDF | Recommend to your Friends

http://educratsweb(dot)com http://educratsweb.com/content.php?id=974 http://educratsweb.com educratsweb.com educratsweb