1. Differentiating “Combined” Functions ---Part I
Constant Multiples, Sums and Differences

2. Algebraic Combinations
We have seen that it is fairly easy to compute the derivative of a “simple” function using the definition of the derivative.
More complicated functions can be difficult or impossible to differentiate using this method.
So we ask If we know the derivatives of two fairly simple functions, can we deduce the derivative of some algebraic combination (e.g. the sum or difference) of these functions without going back to the difference quotient?
Yes!

3. The Derivative of a constant times a function
Can we do this?

4. What does this mean?

5. The Derivative of the Sum of Two Functions
Can we do this?

6. The Derivative of the Difference of Two Functions