✨ Best Answer ✨
正弦定理から、
AC/s=2s/1 BC/s(π/2-θ)=2s/1
AC=2s^2 BC=2s(1・c-0・s)
BC=2sc
AC+BC=2s^2-1+2sc+1
=s2-c2+1
ア、イ、ウの解き方お願いします!
✨ Best Answer ✨
正弦定理から、
AC/s=2s/1 BC/s(π/2-θ)=2s/1
AC=2s^2 BC=2s(1・c-0・s)
BC=2sc
AC+BC=2s^2-1+2sc+1
=s2-c2+1
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ありがとうございます!