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Review of midline, amplitude, and period concepts in trigonometry.

Learn about the equation of trigonometric functions and how to graph sinusoidal functions.

Learn about the wave equation and its applications in physics with Khan Academy's comprehensive tutorial.

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Learn about sound properties such as amplitude, period, frequency, and wavelength on Khan Academy.

Review the laws of sines and cosines to solve general triangles on Khan Academy.

Hi Emily, We do not have currently have answer keys available for the practice problems. However, while the students are doing the practice problems, they can use the Hint feature for missed questions to view a step-by-step solution to the problem.

Il y a différentes techniques pour calculer des limites, et chacune s'applique dans certaines conditions. Toutes ces techniques doivent être connues bien sûr, mais ce qui est important c'est aussi de distinguer les conditions dans lesquelles on doit utiliser l'une ou l'autre.

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