Mathematics
Senior High
Resolved
どうやったらこんなに綺麗になるのか途中式を知りたいです
DE2=AE2+ AD2AEAD cos ∠EAD
512
51 17 17
=(-) + ()-201
4
16 4
328
(6) 172.72
=
162.22
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ありがとうございます🙇♀️