Question 1107253
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I can give the answer to the question <U>for free</U>.


The answer is: ZERO.
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<U>Solution</U>


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The rate of change is the derivative  f'(x) = (2 + cos(x))' = -sin(x).


The  <U>average rate of change</U>  is the integral of f'(x)*dx  over the interval from 0 to {{{pi}}}, divided by the length of this interval.  


The integral itself is equal to zero, hence the answer.
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