Question 1028729
First remember that cot(y) =cos(y)/sen(y), so y may be betweeen (0,90) or (180,270)

Arc cot (2,4) = 22,62 degrees or  202,62 degrees (first and thirds cuadrant)

 2x + 25 =22,62 or 2x + 25 = 202,62 where x > =0 and x<=90

 X =-1,19 or x =88,81 where x>=0 and x<=90

So solution is x=88,81 degrees.

Obs: calculator gives only 22,62. So the other one: 202,62 degrees is 180 + 22,62)