• Wolf314159@startrek.website
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          2 个月前

          Sine of theta is the ratio of the lengths of the Opposite side over the Hypotenuse (SOH). Cosine of theta is Adjacent over Hypotenuse (CAH). Tangent of theta is Opposite over Adjacent (TOA).

          Ok, now that I feel dumb and I don’t get the problem with the diagram, except that it is kinda of obtuse and easy to confuse in one’s mind.

          • pumpkinseedoil@mander.xyz
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            2 个月前

            Oh you’re saying opposite site and adjacent site in English

            Anyway how is the r=1 circle harmful for that?

            • BalooWasWahoo@links.hackliberty.org
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              2 个月前

              It’s not. It’s just one of those things that people groan about because when you first learn it the concept is confusing. After about 15 minutes of instruction on a unit circle, it’s not a big deal at all.

          • Eheran@lemmy.world
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            2 个月前

            How do you know which one is “opposite” and adjacent? They could literally be exactly the same but in any case they both touch the hypotenuse?

              • Eheran@lemmy.world
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                2 个月前

                So the picture is wrong then, the marked angle is top right (and the right angle, of course), the other angle is not marked, so adjacent and opposite are swapped.

                • RecluseRamble@lemmy.dbzer0.com
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                  2 个月前

                  The one with the Jedi? Yes, was wondering about that too. If you get through the trouble creating something like that you should really try to make it right.