- #1
ezperkins
- 17
- 0
"Use Euler's formula to evaluate the following and write your answer in rectangular form."
A. (2i)5
B. (1+i)-.5
I referred to my precal book and various websites and am still clueless. I started to work out A. but I'm not sure of anything. Here's what I did:
(2i)5 = 32i
On the imaginary/real plane, that forms a 90 degree angle.
[tex]\theta = \frac{\pi}{4}[/tex]
[tex]e^{i \theta } = cos \theta + isin \theta [/tex]
[tex] cos \frac{\pi}{4} = 0[/tex] & [tex]isin\frac{\pi}{4} = i [/tex]
[tex]e^ {\frac{i\pi}{4}} = i [/tex]
[tex]e^ {\frac{\pi}{4}} = ? [/tex] . . .
Whenever I don't know what I'm doing, I just mimic, and I feel like I'm mimicking incorrectly.
I would really like to know how to do this but can't figure it out on my own. Thanks in advance :)
A. (2i)5
B. (1+i)-.5
I referred to my precal book and various websites and am still clueless. I started to work out A. but I'm not sure of anything. Here's what I did:
(2i)5 = 32i
On the imaginary/real plane, that forms a 90 degree angle.
[tex]\theta = \frac{\pi}{4}[/tex]
[tex]e^{i \theta } = cos \theta + isin \theta [/tex]
[tex] cos \frac{\pi}{4} = 0[/tex] & [tex]isin\frac{\pi}{4} = i [/tex]
[tex]e^ {\frac{i\pi}{4}} = i [/tex]
[tex]e^ {\frac{\pi}{4}} = ? [/tex] . . .
Whenever I don't know what I'm doing, I just mimic, and I feel like I'm mimicking incorrectly.
I would really like to know how to do this but can't figure it out on my own. Thanks in advance :)