I've seen people post Calculus and Trigonometry equations and get them solved fairly quickly!
我亲眼目睹有人发布有关微积分和三角法的恒等式难题，并迅速得到别人的解答。
Geometry, trigonometry, differentiation, integration, conic sections, differential equations, and their multidimensional and multivariate versions - these all have important applications.
几何，三角，微分，积分，圆锥曲线，微分方程，和他们的多维和多元——这些都有重要的应用。
应用推荐