If someone could help me with this htat would mean a lot, please and thank you

Let \($z = 2 e^{10 \pi i/21} $\) and \($w = e^{\pi i/7}$\) then what is

\(\[|(z+w)^6|,\] \)

the magnitude of

$(z+w)^6$? ?

Sorry for the awful format I am still getting used to this.

Guest Jun 28, 2020