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Worksheet
Curated OER

The Law of Cosines

For Students 11th - 12th
In this Law of Cosines worksheet, students are asked to demonstrate the ability to apply the Trigonometric Law of Cosines and the Inverse Law of Cosines to solve for sides and angles of right triangles. 
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Graphic
Calculator Soup

Calculator Soup: Inverse Trigonometric Function Graphs

For Students 9th - 10th
Shows images of inverse trigonometric function graphs.