In the limit, as change in x approaches 0, (sin(?x))/?x=1(calculator proof).
Video by: Tiago Hands (https://www.instagram.com/tiago_hands/)
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https://www.youtube.com/watch?v=g59L1xMKy7k
In this video I explain what happens when the addition rule is applied to mutually exclusive events and when the multiplication rule is applied to independent events.
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https://www.youtube.com/watch?v=QC3MXAZf22U
What you *need* in order to follow this video series:
1. Algebraic skills {http://mathsvideos.net/useful-algebraic-formulas/}
You need to know that: √(ab) = √a√b
2. Trigonometry skills:
- Unit circle {https://scontent-lhr3-1.xx.fbcdn.net/v/t31.0-8/14324643_627264727441617_168387912534466908_o.jpg?oh=ea3f9cec2389ced6eaa76830057e7d85&oe=58FE04F9}
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https://www.youtube.com/watch?v=46Hr8e3eGkc
In this video I demonstrate how to prove that tanhx=(e^(2x)-1)/(e^(2x)+1) using simple algebraic techniques.
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ALL THE BEST!!
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https://www.youtube.com/watch?v=5Fvpbgmnqjw
Great Pen for Mathematics: Sharpie S Gel 0.7
In this video I introduce you to a fantastic pen I'm currently using, the Sharpie S Gel 0.7. It's a delight to work with. The ink doesn't bleed, the pen looks great, it's light and also comfortable. I have no complaints.
You can see the type of work I'm making with it at: https://geometricbites.blogspot.com.
If you'd like to buy this pen, please do so through my Amazon affiliate link:
https://www.amazon.co.uk/dp/B08RG5Z8L6?ref=exp_mathematics.proofs_dp_vv_d
It helps my channel and supports my blog.
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