Question 1152665
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<U>ANSWER</U>.  The angles  0 <= x < 90 degrees.



<U>Explanation</U>.  The angles listed under the <u>answer</U>, i.e.   0 <= x < 90 degrees, OBVIOUSLY, satisfy the given inequality.


The complement to this set, i.e. angles  90 <= x <= 180 degrees, OBVIOUSLY, do not satisfy the given inequality,

since then  cos(x) is negative and  {{{0.2^(cos(x))}}}  is then  {{{(1/0.2)^t}}} = {{{5^t}}},  where t is a positive index.
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