How to Find Sin, Cos & Tan Using Reference Angles
If you've memorised your exact values, how do you work out the values for sin, cos, and tan of obtuse angles? Thats what I do in this video. If you have any other videos you want me to make, have any questions on the work done in the videos, or want to ask other general questions. Please feel free to comment, and I'll make sure to reach out to you.
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