Mathematics
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何故上の式から半径が√2と分かるのですか??

図で, 円の半径が7デ 吉Pの座標は (ー 了有NiO sin(- ヶ|= 5 4 ces|- 9 4 ia

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✨ Best Answer ✨

sinやcosの値を三角形に直したものからです。

ありがとうございました!

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