First Differentiation Rule Application
When finding the derivative of the function f(x) = tan (x) / (x^2 + 1)^3, which differentiation rule should be applied first?
A
The power rule, applied to the denominator first.
B
The quotient rule, because the function is a ratio of two functions.
C
The chain rule, because tan (x) is a composite function.
D
The chain rule, because the denominator is raised to a power.
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