Differentiate #cos(x^2+1)# using first principle of derivative?
2 Answers
Explanation:
For this problem, we need to use chain rule, as well as the fact that the derivative of
Formally,
where
We first need to work out the derivative of the bit inside the cosine, namely
Please see below.
Explanation:
We need to find
Let's focus on the expression whose limit we need.
We will use the following limits:
And
To evaluate the limit: