Mathematics
Senior High
（3）の問題の解き方を教えてください。
街 石前
点/10
ロ
D
0<0<2z のとき, 次の方程式, 不等式を解け。
(1), (2) 各2点 (3), (4) 各3点
(1) cos20 - V3 sin0 +2=0
20)
(3) cos20 - V2 cos0 -1<0
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