Complex Number Question Watch

james22
Badges: 15
Rep:
?
#1
Report Thread starter 5 years ago
#1
I'm having a complete mind blank here, how would I go about writing \frac{1}{a+e^{i\theta}} in real and imaginary parts where a is complex?
0
reply
davros
  • Study Helper
Badges: 16
Rep:
?
#2
Report 5 years ago
#2
(Original post by james22)
I'm having a complete mind blank here, how would I go about writing \frac{1}{a+e^{i\theta}} in real and imaginary parts where a is complex?
You'll want to multiply top and bottom by the conjugate of the denominator i.e.

a + e^{-i\theta}
0
reply
DFranklin
Badges: 18
Rep:
?
#3
Report 5 years ago
#3
(Original post by davros)
You'll want to multiply top and bottom by the conjugate of the denominator i.e.

a + e^{-i\theta}
If a is complex that will have to be \bar{a} + e^{-i\theta}.
1
reply
davros
  • Study Helper
Badges: 16
Rep:
?
#4
Report 5 years ago
#4
(Original post by DFranklin)
If a is complex that will have to be \bar{a} + e^{-i\theta}.
Oops, yes - must learn not to post when tired
0
reply
DFranklin
Badges: 18
Rep:
?
#5
Report 5 years ago
#5
(Original post by davros)
Oops, yes - must learn not to post when tired
Probably better than when I post when drunk...
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • Arts University Bournemouth
    Art and Design Foundation Diploma Further education
    Sat, 25 May '19
  • SOAS University of London
    Postgraduate Open Day Postgraduate
    Wed, 29 May '19
  • University of Exeter
    Undergraduate Open Day - Penryn Campus Undergraduate
    Thu, 30 May '19

How did your AQA GCSE Physics Paper 1 go?

Loved the paper - Feeling positive (423)
30.26%
The paper was reasonable (551)
39.41%
Not feeling great about that exam... (239)
17.1%
It was TERRIBLE (185)
13.23%

Watched Threads

View All