Đáp án:
A
Giải thích các bước giải:
Pha dao động chậm pha hơn pha vận tốc góc \(\frac{\pi }{2}\)
Nên pha dao động: \( - \frac{\pi }{6}\)
Giá trị vận tốc được phản ánh trên vòng tròn lượng giác
\(v = \frac{{{v_{max}}}}{2}\) và đang giảm
BẠN THAM KHẢO.
Vẽ đậu mầm mặc đồ thú trên app full màu full line pic kí pic ko vẽ có tâm
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Câu 10. Dùng từ gợi ý để hoàn thành câu : 91. Quang / brother / walk / movie theater / moment. => ………………………….………………………………………………….. 92. Ba / usually / play volleyball / fall / but / sometimes / sailing. => ………………………….………………………………………….. 93. Mrs. Baker / going / buy / some apples / children? => ………………………….………………………………………………….. 94.. We/ like/ hot/ because/ can/ swim. =>……………………………………………………………………………… 95. What / there / front / your house ? =>……………………………………………………………………………… 96. They/ often / go / park .=>……………………………………………………………………………… 97. What / weather / like / spring ? =>……………………………………………………………………… 98. When / hot / I / swimming .=>……………………………………………………………………………… 99. My father / visit / Ha Noi / this summer vacation .=>……………………………………………………… 100. How / much / a fried rice ? =>…………………………………………………………………………… Mik đang cần gấp, giúp mik nhé
mn ơi giúp em em với em hứa đánh giá tốt
Tính GTNN của biểu thức P= x^2+10x+28
Mọi người giúp mik với ( vẽ hình và giải)
phân tích thành nhân tử( phương pháp dùng hằng đẳng thức) 33, (4a+3b)^2-(b-2a)^2 34, (2a-b)^2-4(a-b)^2 35, 4(2a-b)^2-16(a-b)^2 36, 81(x+7)^2-(3x+8)^2 37, x^2+10x+25 38, 4x^2+12x+9 giai chi tiết giúp mk với ạ
Giúp mik với ạ Mik đanh cần gấp
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