Where do Sin, Cos and Tan Actually Come From - Origins of Trigonometry - Part 1

Where does Pi come from? -    • What is Pi and Where Does it Actually...  
6÷2(1+2) = ? -    • 6÷2(1+2) = ? | Correct Answer Inside ...  
Flat Earth Debunked -    • Flat Earth Debunked Mathematically Pa...  

Subscribe for more free educational videos brought to you by Syed Institute.
Like to support our cause and help put more videos out.
Comment if you want to say something.

Email - [email protected]

This video looks to seek where Sin (Sine), Cos and Tan actually come from.

Looking at the ratios of the sides of right angle triangles, we can notice certain patterns if we measure different right angle triangles with the same angles. Very similar to how ratios exist in circles with circumference and diameter to discover Pi.

We can then make trig (trigonometry) tables for all the angles and then draw the graph of sin(x) which forms the sine wave.

These trig ratios help us finding missing angles or sides in triangles by using SOHCAHTOA (SOH CAH TOA).

The sine function can be obtained by taking ratios of triangle sides at different angles.

Media, business and educational enquiries can be made to [email protected]

Thank you for watching.