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(q71) An engineering student wants to find the area of surface obtained by rotating the curve y = 3x^2 over the interval [0, 2], about the x-axis. Which of the following is the correct surface area?

(q71) An engineering student wants to find the area of surface obtained by rotating the curve y = 3x^2 over the interval [0, 2], about the x-axis. Which of the class=

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