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Biểu diễn vector có góc 15 độ so với trục hoành, thành phần x có liên quan đến cos 15 độ như thế nào?

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... cos 157° cos cj)), ±R cos 6 sin 15r°). Slightly more than half of the ... cos 15 T° = tan0tan<£ .(*) cos 0 cos -0.0942*0.55*cos(15)= 0.03935. how do we know to use cos here? are these always the formulas for loops? like is it always ... COS Working Group Phase 2: Discovery of Departmental Conceptual Models. December 15, 2023. Academic Strategic Communications. Editor's Note: The following ...
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