✨ Best Answer ✨
補角の三角比公式
sin ( 180° – θ ) = sin θ
cos ( 180° – θ ) = – cos θ
tan ( 180° – θ ) = – tan θ
なんでcosCAE=-cosBACになるんですか??
✨ Best Answer ✨
補角の三角比公式
sin ( 180° – θ ) = sin θ
cos ( 180° – θ ) = – cos θ
tan ( 180° – θ ) = – tan θ
Users viewing this question
are also looking at these questions 😉
すみません、ありがとうございます!m(_ _)m