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What if you solve this problem using a formula? Isn't it dizzying just thinking about it? :( If you understand the meaning of the symbols and formulas exactly, you can solve it without a single formula! As Kkaebong always says, if you think of an image and think about it for a little bit, it will be solved naturally~ #Trigonometric function #College entrance exam #Elementary school math Play❤️Full score in math~ Artificial intelligence math Kkaebong! [Go to Kkaebong math] ▶ http://bit.ly/38PDkgC [Subscribe to Kkaebong YouTube] ▶ http://bit.ly/2wNT4A7 [Consult on KakaoTalk] ▶ https://bit.ly/3dgDA7F