(a) Show that
where is an arbitrary constant and
and
are constants to be found.
(b) Hence show that the mean value of over the interval [0, 3] is
(c) Use the answer to part (b) to find the mean value, over the interval [0, 3], of
where is a positive constant, giving your answer in the form
where
and
are constants and
is in terms of
.
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