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Geometry Level 2

If 0≤xi≤900\le x_{i} \le 90 where ii is positive integer and sin⁡(x1)+sin⁡(x2)+sin⁡(x3)=3\sin(x_{1})+\sin(x_{2}) + \sin(x_{3})=3

Find cos⁡(x1)+cos⁡(x2)+cos⁡(x3)\cos(x_{1})+\cos(x_{2})+\cos(x_{3})

Department 8 by Department 8
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