Check sibling questions

Ex 5.1, 9 - Express in a + ib: (1/3 + 3i)3 - Complex numbers - Identities (square, cube of 2 complex numbers)

Ex 5.1, 9 - Chapter 5 Class 11 Complex Numbers - Part 2

This video is only available for Teachoo black users

Introducing your new favourite teacher - Teachoo Black, at only β‚Ή83 per month


Transcript

Ex5.1, 9 Express the given Complex number in the form a + ib: (1/3+3 )^3 (1/3+3 )^3 It is the form ( a + b )3 ( a + b )3 = a3 + b3 + 3ab ( a + b ) Putting a = 1/3 = 3 i = (1/3 )^3+( 3 )3+3 1/3 3 ( 1/3+3 ) = 1/27 + (3)^3 ( )^3 + 3 ( 1/3+3 ) = 1/27 + 27 ^3 + 3 ( 1/3+3 ) = 1/27 + 27 ^3 + 3 1/3+3 3 = 1/27 + 27 ^3+ + 9 2

Davneet Singh's photo - Teacher, Engineer, Marketer

Made by

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.