Friday, September 15, 2017

algebra precalculus - Square roots of Complex Number.

Calculate, in the form $a+ib$, where $a,b\in \Bbb R$, the square roots of $16-30i$.



My attempt with $(a+ib)^2 =16-30i$ makes me get $a^2+b^2=16$ and $2ab=−30$. Is this correct?

No comments:

Post a Comment

analysis - Injection, making bijection

I have injection $f \colon A \rightarrow B$ and I want to get bijection. Can I just resting codomain to $f(A)$? I know that every function i...