Mathematics
Senior High
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三角関数の証明についてです。

tan(θ+π/2)=-1/tanθ

これはどのように証明すればいいですか?

三角関数 証明 三角関数の性質

Answers

✨ Best Answer ✨

tan(θ+(π/2))
=(sin(θ+(π/2)))/(cos((θ+π/2)))
=(cosθ)/(-sinθ)
=-(1/tanθ)

という感じですぐに証明できますよー!

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