Trigonometry – Open

This lesson covers leaving cert higher level trigonometry.

The following content is covered:

• Pythagoras’ theorem
• The trigonometric ratios
• Angles of elevation and depression
• Degrees and radians
• The unit circle
• Evaluating trigonometric ratios and reference angles
• The sign of the ratios in each quadrant
• Graphing trigonometric functions
• The sine rule
• The cosine rule
• Trigonometric identity proofs

There is a slide presentation covering the above content.

There are also interactive tutorial videos where students are guided through the correct solutions to past paper questions on trigonometry.