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Suppose that the functions and s are defined for all real numbers x as follows.
r(x) = x + 1
s(x) = 3x+4
Write the expressions for (r.s) (x) and (r+s) (x) and evaluate (r-s) (2).
(r·s)(x) =
(r+s)(x) = [
(rs) (2) =
X
S


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