Mathematics
Senior High
【大至急!めちゃくちゃ簡単で単純な質問です】
この「三角比の相互関係」というのはθが0°<θ<90°じゃない場合でも言えますよね??
20
以上が
三角比の相互関係
1 tan 0=
=
sin 0
cos
2 sin²0+ cos²0=1
3 1+tan²0=
1
cos²0
() (sin0)², (cos0)², (tan 0)² *, * sin²0, cos²0, tan²0.
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