In this page, we will will learn about the Pythagorean Identities. It is actually quite rare that exam questions are solely about these identities, but it is essential that you can use and manipulate them confidently because they are used in so many different parts of the course (so they do come up a lot!). You will learn what they are and how to use them.
Key Concepts
On this page, you should learn about
- the Pythagorean identity \(\large \cos^{ 2 }\theta +\sin^{ 2 }\theta \equiv 1\)
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MY PROGRESS
How much of Pythagorean Identity SL have you understood?