Tag: cos 2x

Trigonometric equations and their graphs

The general technique in matching trigonometric graphs and equations is to consider the intercepts, the minimum and maximum points, the shape of the prototype graph and the transformations done to the graph. Problem If 0≤x≤2π which one of the following trigonometric equations best describes this graph? A. y = 3cos 2x B. y = 2+cos…

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