Okay; thanks for the explanation. That makes sense. I think the question asking for the maximum enclosed area through me off a little bit; the explanation with the second derivative test would of c...

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Thanks; this was very helpful.  Out of curiosity, what makes you say this is a minimisation problem? Everything in your explanation made sense to me; I just don't quite understand that. But the mat...

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3. Calculus differentiation - finding maxima of combined area

Hi. A dangling preposition is basically when you end a sentence with a preposition. Traditionally, to avoid ending the sentence with a preposition, you can use "which" or "whom" (or similar words)....

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3. I'm really struggling with dangling prepostitions