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Trig Nibble: Transforming Your Key Points

You know how to graph a y = sin(x) or y = cos(x) by starting with your 5 key points. But, someone has gone and made it messy by changing the period and doing a phase shift. How do you figure out…

From  Alan Fahrner on February 4th, 2020 7 plays 0  

Trig Nibble: Reverse Arc Length

What if you have the radius and the the length of the arc? How do you figure out what the angle in radians is? P.S. That is "Cahill: United States Marshal" in the background. :-)

From  Alan Fahrner on February 2nd, 2020 1 plays 0  

Trig Nibble: Arc Length

For our first Trig Nibble, Alan shows you how to calculate the length of an arc. Please go about 4 minutes in if you just want to know how to do it, not what is going on behind the formula. :-)

From  Alan Fahrner on January 8th, 2020 2 plays 0