Ambiguous Case of the Sine Law • [2.3c] Pre-Calculus 11

Sometimes you can have two possible solutions when using the sine law to find an angle! This video introduces and explains the ambiguous case of the Sine Law (two triangles possible) as well as the other cases that are possible (one or no triangles possible) when given an angle and two side lengths (and the angle is not between the two sides).
My instructional approach emphasizes conceptual understanding of and connections between concepts and ideas, rather than just pure memorization.
Corresponds to chapter 2, section 2.3 in McGraw-Hill's Pre-Calculus 11, but also fits with the trigonometry unit from almost any other Pre-Calculus course or textbook.
A PDF copy of the 'Video Guide' document used in these videos as well as lots of other resources are available at drive.google.c...
#PreCalc11bytheAAMG

[@RoseAngella]

Beautifully demonstrated and explained. 🧡

[@AllAroundMathGuy]

Thanks so much! 🙂

[@zanonoza4918]

You're a great teacher . Thank you sir 🙏.

[@AllAroundMathGuy]

You are welcome, and thank you for your kind words! 🙂

[@renewd]

Your graphical tool was on point. Well done.

[@AllAroundMathGuy]

Thanks - I'm glad you found it useful! 🙂

[@mathsworld9974]

Sir you are great teacher...

[@victorialorenzo4837]

This is a great video. Thank you

[@AllAroundMathGuy]

You're welcome. I appreciate the feedback! :)

[@maqboolahmad9301]

I have a triangle ABC line AB 40 units, 30° on point A(CAB) , & 34 units on point BC, how to calculate the value of AC. Please solved it.

[@Botiful-Chaos]

How is math now?

[@doriosmond2465]

Great video! Could you tell me what software / app you are using to show the sliding side of the triangle in the 2nd half of the video? Thx!

[@AllAroundMathGuy]

Thanks! The software is Geogebra - free to use either online or to download - it's awesome! 🙂www.geogebra.org/download

[@neilpurdy2983]

Excellent demonstration. What's the password to open the pdf?