If-x-R-show-that-2-i-e-1-3i-2-i-e-1-3i-is-also-real- Tinku Tara June 4, 2023 Others 0 Comments FacebookTweetPin Question Number 37948 by Fawomath last updated on 19/Jun/18 Ifx∈Rshowthat(2+i)e(1+3i)+(2−i)e(1−3i)isalsoreal. Commented by prof Abdo imad last updated on 19/Jun/18 letprovefirstthatconj(ea+ib)=ea−ibifaandbreals(conj(z)=z−)wehaveea+ib=ea(cosb+isinb)⇒vonj(ea+ib)=ea(cosb−isinb)=ea−ibletz=(2+i)e1+3i⇒z−=(2−i)e1−3i⇒(2+i)e1+3i+(2−i)e1−3i=z+z−=2Re(z)∈R. Terms of Service Privacy Policy Contact: info@tinkutara.com FacebookTweetPin Post navigation Previous Previous post: y-2-u-u-y-dy-du-0-Next Next post: Question-37953 Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Save my name, email, and website in this browser for the next time I comment.