Mean Value Theorem

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Let f(x)= sqrt(2x-x2) on the interval [0,2]. Find all numbers c, 0<c<2, which satisfy the conclusion of the mean value theorem.

f(x)= sqrt(2x-x2)


f(x) is differential and continous on (0,2),

Thus f'(c)= (f(2)-f(0))/(2-0)


(1-c)=0 => c=1