Mathematics
Senior High
ここなんで10になるんですか？教えてください🙇
Training
教p.142問 12
239 次の三角比を45°以下の角の三角比で表せ。
1) sin 80°
トレーニング
-
25Y
VOISIR
(1) sin80° = sin(90° -10°) = cos 10°
2⁰
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