SOLUTION: (1+i)^6
Algebra
->
Complex Numbers Imaginary Numbers Solvers and Lesson
-> SOLUTION: (1+i)^6
Log On
Algebra: Complex Numbers
Section
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on Complex Numbers
Question 164272
:
(1+i)^6
Answer by
watchmath(2)
(
Show Source
):
You can
put this solution on YOUR website!
i+1 =sqrt(2) [cos(pi/4) + isin(pi/4) ]
Now
(i+1)^6= (sqrt(2) )^6 [cos(pi/4) +isin(pi/4)]^6
By De Moivre's
(i+1)^6= 8 {cos (8pi/4) +isin(8pi/4) )
= 8*1
=8.