Section 3.1 : The Definition of the Derivative
1. Use the definition of the derivative to find the derivative of,
\[f\left( x \right) = 6\] Show SolutionThere really isn’t much to do for this problem other than to plug the function into the definition of the derivative and do a little algebra.
\[f'\left( x \right) = \mathop {\lim }\limits_{h \to 0} \frac{{f\left( {x + h} \right) - f\left( x \right)}}{h} = \mathop {\lim }\limits_{h \to 0} \frac{{6 - 6}}{h} = \mathop {\lim }\limits_{h \to 0} \frac{0}{h} = \mathop {\lim }\limits_{h \to 0} 0 = 0\]So, the derivative for this function is,
\[\require{bbox} \bbox[2pt,border:1px solid black]{{f'\left( x \right) = 0}}\]