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Introduction to the trigonometric functions
Dr Ria Symonds goes over how we measure angles in radians and helps explain how to recognise and sketch graphs of the sine and cosine functions.
In this video, Dr Ria Symmonds explains the concept of the unit circle and how understanding this helps us to recognise and sketch graphs of the sine and cosine functions.
Recap question:
In the comments below, write down your answer to the question “How do you define a radian?” As an extension, can you explain why you think in maths at this level, we most commonly use radians to measure angles?
This article is from the online course:
Introduction to Mathematical Methods for University-Level Science
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Introduction to Mathematical Methods for University-Level Science
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