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UNIT 10 · LESSON 5

Simplifying Trig Expressions

Understand relationships that are true for all valid angles.

WHY LEARN THIS?

This idea has a purpose.

Mathematics becomes much easier when you understand what a tool was designed to accomplish. This lesson will build Simplifying Trig Expressions from the idea itself instead of asking you to memorize a rule first.

Places this kind of mathematics can appear:

mathematical modeling
engineering
proof
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