moyeon

This page lists questions and answers that were posted by visitors named moyeon.

Questions

The following questions were asked by visitors named moyeon.

If a=cos2x+isin2x ,b=cos2y +isin2y prove thAt a+b=2Cos(x-y)(cos(x+y)+isin(x+y))
8 years ago

Answers

The following answers were posted by visitors named moyeon.