Identify function: Identify the function to differentiate. The function is f(x)=a2−121, where a is a constant and x is the variable.
Derivative of constants: Since a is a constant and does not depend on x, the derivative of a2 with respect to x is 0. The derivative of a constant, −121, is also 0.
Apply derivative rule: Apply the knowledge that the derivative of a constant is 0 to the function f(x). The derivative of f(x)=a2−121 with respect to x is 0−0.
Simplify derivative expression: Simplify the derivative expression. The derivative of f(x)=a2−121 is f′(x)=0.
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