Decide Whether Integration by Parts or Substitution Should Be Used $\int \ln 4 x d x$

question 169

Multiple Choice

Decide whether integration by parts or substitution should be used to compute the indefinite integral $\int \ln 4 x d x$ If substitution, indicate the value of u; if by parts, indicate f(x) and g(x) .

• A) integration by parts; f(x) = 1, g(x) = ln 4x
• B) substitution; u = 4x
• C) integration by parts; f(x) = ln 4x, g(x) =1
• D) integration by parts; f(x) = ln x, g(x) = 4x
• E) none of these

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