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Title [Albert Shim] Page 94 Problem 9
AP CALCULUS 9
Author jyl*** Date Posted 2023-08-16 오후 5:47:02
I'm a bit confused as to why pi/2n turns to 1/2n. In the video, the final answer was lim (n to infinity) sigma (k=1 at the bottom and n at the top) sin(pi/2 plus kpi/2n) times pi/2n. However, you said choice C was the correct answer. The answer except for the last part regarding pi/2n in choice C remains the same. Would you mind clarifying how this happens?
2023-08-21 오전 9:16:26

Even if I solve it again, the same solution as the book comes out.

 

If it is an older book, there may have been typos, but they have been corrected.

 

 

 

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