ATAR Notes: Forum
VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Specialist Mathematics => Topic started by: suskieanna on March 20, 2019, 11:24:47 am
-
Hello I have a simple question to ask!
Is Cis[0] + Cis
-
Hello I have a simple question to ask!
Is Cis[0] + Cis
In general, \(\text{cis}(a)+\text{cis}(b)\neq \text{cis}(a+b)\).
This is pretty easy to see using \(\text{cis}(\theta)=\cos(\theta)+i\sin(\theta)\).
Side note: it is true however that \(\text{cis}(a)\text{cis}(b)=\text{cis}(a+b)\).