The Pythagorean Theorem
The Pythagorean Theorem is a well-known theorem that has many proofs. The basic equation is
\( a^2 + b^2 = c^2 \).
Triangle for Pythagorean Theorem [ source: wikipedia ]
This is a very important theorem that you will use a lot in precalculus and calculus. Here is a good video that explains it in detail.
Next - If you have followed the next page links, where you go from here depends on what you need to know for your course. We suggest you re-familiarize yourself with similar triangles before going on to another topic. Then, come back to the inverse trig functions page when you need to.
Really UNDERSTAND Precalculus
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