Question

What is the derivative of loga

Answer 1

Is "a" a variable and you are deriving with respect to a?
Is "a" the base and the variable is missing?
Is "a" a constant?

If "a" is simply a constant, and the base is 10, remember that the derivative of a constant is zero.

Answer 2

a is a constant

Answer 3

If it is a constant, then it's very simple.
For constant, k,
\(\dfrac{d}{dx} k = 0\)

The derivative of a constant is zero, so since "a" is a constant, log a is a constant,
so d/dx (log a) = 0.