Mathematics
Senior High
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これ合ってますか??条件は0≦θ<2πです。字が汚くてすみません🙇♀️
10) sin 20-case = 0
2sin Ocos O-ces 0 = 0
cos 0 (2 sin 0-1) = 0
cos 0 = 0 7 1² 17 2 sin 0-1 = 0
(₁) cos 0 = 0 ace
0 = 1 1 1
+
(ii) 2 sin 0-1=0
sín 0 = 1
0 = 7², 7/7 T
TV
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