# Exercise Solution 3.39

We apply [3.4] and [3.127] and also use the fact that an integral of a sum is a sum of integrals:

[s1]

[s2]

[s3]

[s4]

[s5]

[s6]

which is [3.128].

We apply the result of Exercise 3.15 to obtain

[s7]

[s8]

[s9]

[s10]

[s11]

[s12]

[s13]

[s14]

which is [3.129].

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