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The problem is called self-answering problems because the answers are embedded in the

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asked 2021-06-15

The problem is called self-answering problems because the answers are embedded in the question. For example, how many ways can you arrange the letters in the word “six”? The answer is six. At time \(t=0\), water begins pouring into an empty sink so that the volume of water is changing at a rate \(V′(t)=\cos t.\) For time \(t=k\), where \(0\leq k\leq\frac{\pi}{2}\) determine the amount of water in the sink.

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2021-06-16

The amount of water in the

\(\sin k=\int k\);

\(0 \cos t\ dt\ V(t)=\sin t | k\);

\(0 V(t)=\sin k\)

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