This video lecture series from Khan Academy on Trigonometry includes Radians and Degrees, Using Trigonometric Functions, The Unit Circle definition of trigonometric function, Graph of the Sine Function, graphs of Trigonometric Functions, Trigonometric Identities, Law of Cosines, Law of Sines, Polar Coordinates and Trigonometric Word Problems..
Using Trig Functions Part II is a free educational video by Khan Academy.It helps students in grades 9,10,11,12 practice the following standards HSG.SRT.C.6,HSG.SRT.C.8,.
1. HSG.SRT.C.6 : Understand that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles.
2. HSG.SRT.C.8 : Use trigonometric ratios and the Pythagorean Theorem to solve right triangles in applied problems.
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