Professor, this question is unrelated to the lecture, but may I ask something? I'm dying to know now. When deriving the formula for the area of a surface of revolution, we approximate x_k+1 = x_k = c_k, and then we get the Riemann sum. Could you explain why we can approximate the value inside the limit of sigma?
Professor, this question is unrelated to the lecture, but may I ask something? I'm dying to know now.
When deriving the formula for the area of a surface of revolution, we approximate x_k+1 = x_k = c_k, and then we get the Riemann sum. Could you explain why we can approximate the value inside the limit of sigma?