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13.1.7. Problem. Let f(x) = sinx and g(x) = cosx for 0 ≤ x ≤ π....

13.1.7. Problem. Let f(x) = sinx and g(x) = cosx for 0 ≤ x ≤ π. Find du(f,g) in the set of functions B([0, π]).

13.1.8. Problem. Let f(x) = 3x−3x3 and g(x) = 3x−3x2 for 0 ≤ x ≤ 2. Find du(f,g) in the
set of functions B([0, 2]).
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