Question

Express the complex number in trigonometric form.

5 - 5i

Answer 1

Use pythagorean theorem to get r
r^2=a^2+b^2
And use inv tan (5/5) to get the angle.

Answer 2

wait what?

Answer 3

What do you mean "trigonometric form"?
I guess I should have started with that.

Answer 4

i thought the answer was; 5sqrt2(cos5pi/4+isin5pi/4)

Answer 5

would tht be right?

Answer 6

I would think it's:
5sqrt2(cos(-pi/4)+isin(-pi/4))
A negative angle and I don't know where you got the 5 multiplying the angle. But then I haven't done these for a long while.