✨ Best Answer ✨
(e^x + e^-x)^2
= (e^x + e^-x) (e^x + e^-x)
= e^2x + 1 + 1 + e^-2x
= e^2x + e^-2x + 2
展開したらこのようになると思います！💦
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✨ Best Answer ✨
(e^x + e^-x)^2
= (e^x + e^-x) (e^x + e^-x)
= e^2x + 1 + 1 + e^-2x
= e^2x + e^-2x + 2
展開したらこのようになると思います！💦
Users viewing this question
are also looking at these questions 😉
ありがとうございます！