Mathematics
Senior High
Resolved
(3)の解き方が分かりせん
1B
20
40.
=本恒=2002
21
#
(2)a=6,c=5,B=150°
A
5
B
$150°
6
C
S=1/12.5.6.sin150°
N
=15・(一言)/
=15.(-1/2)=-30J2
B
(3) 1辺の長さが4の正三角形ABC
4
A
A
604
4
C
Answers
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