Example 6 (i) - Chapter 4 Class 11 Complex Numbers
Last updated at Dec. 16, 2024 by Teachoo
Last updated at Dec. 16, 2024 by Teachoo
Example 6 Express the following in the form a + ib (5 + 2 i )/(1 2 i) (5 + 2 )/(1 2 ) Rationalizing = (( 5 + 2 ) )/((1 2 ) ) ((1 + 2 ))/((1 + 2 ) ) = (( 5 + 2 ) (1 + 2 ))/((1 2 ) (1 + 2 ) ) = ( ( 5 + 2 ) ( 1 + 2 ))/(( 1 )2 ( 2 )2) = ( ( 5 + 2 ) ( 1 + 2 ) )/(1 2 2) = ( 5 1 + 5 2 + 2 1 + 2 2 )/(1 2 2) = ( 5 + 5 2 + 2 + 2 2)/(1 2 2) Putting i 2 = 1 = ( 5 + 5 2 + 2 + 2 ( 1 ))/(1 2 ( 1 )) = ( 5 + 5 2 + 2 2)/(1 + 2) = ( 5 2 +5 2 + 2 )/3 = ( 3 + 6 2 )/3 = ( 3 ( 1+2 2 ))/3 = 1 + 2 2
Examples
Example 2 (i)
Example 2 (ii) Important
Example 3
Example 4
Example 5 Important
Example 6 (i) You are here
Example 6 (ii) Important
Example 7
Example 8 Important
Question 1
Question 2 Important
Question 3
Question 4
Question 5 Important
Question 6 (i) Important
Question 6 (ii)
Question 7
Question 8 Important
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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo