The Good Ol' Related Rates [Korean CSAT 2007]

A problem from South Korean College Scholastic Ability Test (CSAT), where the point rotates along the circumference of a unit circle and the area related to the position of this point also changes accordingly, and you have to find the rate of change of this area with respect to time at a certain point. There are more than one method to solve this problem, but I will only show you what I think the most elegant and efficient method.
[Korean CSAT Problems Playlist]
• Korean CSAT Problems
#KoreanCSAT #calculus #RelatedRates #differantiation #integration #areas #RateOfChange #suneung #CSAT2007
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CORNERSTONES OF MATH features quality math problems to strengthen your math fundamentals and problem-solving ability. Problems are generally on high school level (with some deviations), spanning over topics such as algebra, discrete mathematics, calculus, geometry, statistics, trigonometry, etc. I hope that this channel provides some intellectual pleasure and make you appreciate the beauty of math itself.
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