Trigonometry | Math Olympiad | Sin | High School Math

preview_player
Показать описание

PLAYLISTS 🎵 :
Рекомендации по теме
Комментарии
Автор

Please increase your recorded volume by 400%. it is too soft even at 50% volume.

chengshengway
Автор

Dear sir, I got zero as the answer : if x^4=-1 then x^9+x^99 =x+x^3 then factoring x^3 we get x^3(1+1/x^2) but the expression in parentheses is zero . please show where I have made a mistake. much obliged .
thanks for your excellent videos and teaching 🙏

backgammonmaster
Автор

Where is the conclusion of the reasoning?

becomepostal