# How do you differentiate #g(x) = sin(3x)sin(6x)# using the product rule?

##### 1 Answer

#### Answer:

#### Explanation:

The product rule says that if

then

In the above example,

so

Now we have our two separate functions, we can differentiate them. However, these functions have insides (

so

Therefore the derivative of the whole thing, if you remember back to the product rule equation, is