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# Compex Numbers

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Why bother with a post grad? Are they even worth it? Have your say! 26-10-2016
1. Is my working correct? PART B

After drawing a diagram,

2. (Original post by Yunique)
Is my working correct? PART B

After drawing a diagram
Nopes. You're overcomplicating this. means the complex number w lies on the vertical imaginary axis. That means, it's real part is 0.

What's the real part of ? (in terms of ) set it equal to 0 and solve.
3. (Original post by Zacken)
Nopes. You're overcomplicating this. means the complex number w lies on the vertical imaginary axis. That means, it's real part is 0.

What's the real part of ? (in terms of ) set it equal to 0 and solve.
True, but surely there is a way to soIve it using the method I was trying to take?
4. (Original post by Yunique)
True, but surely there is a way to soIve it using the method I was trying to take?
It'll boil down to the same thing. If the argument is then your argument is . Apply the tangent to both sides: .

is undefined. So we need the denominator to be 0, i.e: .

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