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help me number 14

Date Posted: 5 months ago
Views: 51

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Ng Khee Boon
Ng Khee Boon's answer
65 answers (Tutor Details)
Apply chain rule to find dr/dt = 1/2√π
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Eric Nicholas K
Eric Nicholas K's answer
2263 answers (Tutor Details)
For this type of question, we must make use of the chain rule formula to generate an equation. Here, the equation to consider is dA/dt = dA/dr * dr/dt.

Of course, finding dr/dt would require us to first find dA/dr, and we can formulate an equation for A in terms of r since the shape of the object is a circle.

Hope the workings help!