hello! Ok so I am trying to take the inverse tangent of 8/13 and both my calculator and this say its 31.60750, but my online math program is saying it's like 211. something. Do i have the settings wrong on my calculator
Your settings are fine..but the tangent values repeat every time you add 180º
So the inverse tangent of 8/13 ≈ 31.607º and 31.607º + 180º = 211.607º
And you can keep adding 180º as many times as you want and the tangent of that angle will still be 8/13 .