Draw the points A : i

and the point B: (1/(2^{0.5})) + (1/(2^{0.5}))i on a argand digram and hence find the argument of A+B i drew it but i am clueless

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- April 22nd 2013, 10:01 AMrighteous818complex numbers help please
Draw the points A : i

and the point B: (1/(2^{0.5})) + (1/(2^{0.5}))i on a argand digram and hence find the argument of A+B i drew it but i am clueless - April 22nd 2013, 10:30 AMPlatoRe: complex numbers help please
- April 22nd 2013, 10:34 AMrighteous818Re: complex numbers help please
they the mark scheme has 3pi/8 and specifically gave no marks for using that forumla and approximating the answer to 3pi/8, they said not to use that formula, they stressed to use the argand diagram to find it, any suggestions how, i did this first but then realised that they did not accept this method..please help

i forgot to mention they want the argument exactly in terms of pi, and have no marks for find A+B and finidnging the argument from that - April 22nd 2013, 11:15 AMemakarovRe: complex numbers help please
Attachment 28083

Note that OACB is a parallelogram, and thus OC is the bisector of ∠AOB. - April 22nd 2013, 11:33 AMrighteous818Re: complex numbers help please
what is the program you use to plot the function an show it is a paralleogram

- April 22nd 2013, 11:43 AMemakarovRe: complex numbers help please