Kenneth S. answered • 03/15/16
Tutor
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Expert Help in Algebra/Trig/(Pre)calculus to Guarantee Success in 2018
cosθ = 0.8829 so (using inverse function)
θ = cos-1(0.8829)
which you do on the calculator (in degree mode);
answer: 29.0058o
Another answer is 360-29.0058 (which the calculator does NOT give).
