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A Further Function Puzzle (Posted on 20070119) 

Define f(x+y) = f(x) + f(y)  1 for all real x and y such that f(x) is differentiable for all values of x with f ’(0) = cos A.
Determine whether or not the value of f(1) – cos A is equal to 2.
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 A solution  Larry  20070119 22:53:11 


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