Doug C. answered • 12/18/21
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Doug C.
All I can say is that I taught from a trig book that used the mentioned conventions. I am assuming that OOOO A. is using a text that uses the same. After that, using other Greek letters for the angles, I have never seen any analogous conventions.
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12/18/21
Osman A.
I just learned from your video: <A = α, <B = β, <C = γ - this is new to me. How about the other angle symbols, such as: <? = θ, <? = λ, <? = Φ, <? = ω, <? = φ, <? = σ, etc. Is this confusion fair to the students?12/18/21