Tag: formulas
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5.1 Trigonometry Fundamental Identities
Trigonometric fundamental identities are really fun stuff. We can use them to rewrite equations and make them simpler for us to solve, and I will illustrate this further along in this post. Let’s get into the Pythagorean identities first. Pythagorean Identities Now that we have our three Pythagorean identities written out, let’s also make note…
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3.3 The Unit Circle and Circular Functions
Meet your best friend – the unit circle! The unit circle is an integral part to helping you succeed in trigonometry. Memorize every part of it (it’s not as overwhelming as it would appear at first glance), and use it to your advantage. During my college trigonometry class, I drew the unit circle on the…
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1.2 Angle Relationships and Similar Triangles
Types of Angles –Vertical Angles have equal measure. In the example below, angles 1 and 3 are vertical angles, as well as angles 2 and 4. –Alternate Interior Angles have the same measure. As we can see expressed below, angles 1 and 2 are alternate interior angles. –Alternate Exterior Angles have the same measure. They…
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Trigonometry Formulas
Trigonometry formulas are your best friend in trigonometry. Memorize these to help you solve all trigonometry related problems you may run into. 6 Trig Functions Quadrantal Angles Reciprocal Identities Pythagorean Identities The Pythagorean Identities can be rewritten in the following way: For more information on the Pythagorean identities and how they can be used, click…