(1+tgα)²+(1-tgα)²=1+2tgα+tg²α + 1- 2tgα+tg²α=2+2tg²α=2(1+tg²α)=
=
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
(1+tgα)²+(1-tgα)²=1+2tgα+tg²α + 1- 2tgα+tg²α=2+2tg²α=2(1+tg²α)=
=