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Calculated question using trig function

Question asked by REBECCA CLARK on Sep 10, 2017
Latest reply on Sep 11, 2017 by Roxanne Conroy

I am trying to create a question using cosine and can't figure out what I am not doing correctly.

cos[angle]*[length]   is what I am trying to do where angle is a range of angles I set up and length is the side of the hypotenuse of a triangle with a range of lengths. I am solving for the adjacent side of a triangle.  I'm sure it is a formatting issue but I can't figure it out.  Thanks.