Find the argument of :
The answer is
And i have no idea =(...doing cot(pi / 8) gives me some horrible decimal i can't work with...as does tan(pi/8)
Any help would be really appreciated!
Thank-you very much!
You can find by using the half-angle identity: , with . This yields . Subtracting from 1 and simplifying yields . As for finding the argument, I'm not sure what you mean, as the argument is usually the angle something makes with the positive x-axis, and is just a number, not a vector.