Reciprocal Trigonometric Functions

Trigonometric functions are GREAT for solving triangles. That is, we can use sine, cosine and tangent, to find the missing parts of a triangle if we know just a handful of information about that triangle.  

The difficulties that arise are usually related to Algebra.  If you’re solving an equation that uses a Trigonometric function, say cosine, and you need to find the hypotenuse, it gets tricky.  This is where reciprocal functions come into play.  In practice and concept they’re not significantly different from the functions you already know, but the sometimes offer an easier path to finding unknown information.

Use the tabs below to read the notes, watch the video, download and play the PowerPoint.  Then, try the practice problems.

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