HELP URGENT I NEED THIS FAST!!!
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Brainly is erroneously preventing my response from being posted due to nonexistent profanity or links. So, I have converted my answer into an image file, which I have attached. I also attached an annotated diagram of the figure in the image you posted. Please let me know if you have trouble accessing either. Hope this helps.
Reading that as
By the fundamental theorem of calculus, the first derivative is
and so the second derivative would be
which means
By the fundamental theorem of calculus, the first derivative is
and so the second derivative would be
which means