00:01
In your question, you're asked to take the second derivative and then find the value of the second derivative at three different x values.
00:07
Here is your given function.
00:10
To take our derivative, this is a chain rule problem.
00:14
The power will multiply the front, which is currently a 1 here, so 4 times 1 is a 4.
00:24
We keep the inside function the same.
00:27
We drop the power by 1, and we multiply by the derivative of the inside function.
00:33
But the derivative of the inside function is just a 1, so really i could skip that step for this question.
00:41
We then move on to the second derivative, where i repeat the power rule.
00:47
3 multiplies the 4 gives me a 12.
00:51
Parentheses, keep the inside function the same.
00:54
Drop the power by 1, and again, multiply by the derivative of the inside function, which is still 1.
01:01
We don't need to keep that...