Uni Stuff > Mathematics

Maths Questions ^_^

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AppleXY:
Press the green diamond button and "ENTER" to obtain an approximate value for any calculation :)

Odette:
Thank you ^_^
It didn't work >.<

Odette:
Oh and another question (8+6i) ^1/3 ... I keep getting the same answer and it's wrong.
Here's what i did:
r = sqrt (8^2 + 6^2)
r= sqrt (100)
r= 10

= tan^-1 (6/8)
 = 0.64

z^1/3= 10 ^1/3 (cos (1/3 * 0.64) + i sin (1/3 *0.64) )
        = 10 ^1/3 (cos (0.22) + i sin (0.22))
        = 2.15 e ^0.22i
        = 2.10 + 0.46i

dcc:
Solutions for are:



But that is not a question which favours the use of de'moivre.

Odette:
So my answer is wrong? -is confused-

Oh and another question, how exactly to you print a graph you've sketched using you calculator?
Sorry I don't use my calculator much.

Nevermind I used a graphing program ^_^

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