Mathematics
Senior High
sinx≧0かつsin(x+π/3)≧2のときに、なぜ途中で
2π+π/6≦x+π/3<2π+π/3という範囲がでるのでしょうか?
2π+π/3は理解できるのですが、2π+π/6がどこからきたのか分かりません。よろしくお願いします🙇♂️
sin2x - sin x+√√3 sin x cos x≥0
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