Mathematics
Senior High
△ABCの面積の解き方を詳しく知りたいです
HAABCIEおいて
AB = BC=3
ACE2のてき、こ知のものを
c05 LABCの値
419-4
cos 4 ABc
C
2
3
47
A4
23-3
7
3
21
B
3
2
A.
JinA
AABCの面種
sin 4 A Blc
181-49
9
9
AABC
-す
3
3
9
22a
6
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