Mathematics
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写真の(2)の解き方を詳しく教えてください!🙏🏻
答えは
0°≦θ<45°,90°<θ<225°,270°<θ<360°
です!至急お願いします!!

5.0°S0<360° のとき, 次の不等式を解け。 1 (1) cos@ (2) tan0<1 (3) VZ sin0 <-1 (4) tan0 + V3<0

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これで理解できるかな、、、?

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