Chapter5: Polynomial And Rational Functions
Section: Chapter Questions
Problem 27PT: Find the unknown value. 27. y varies jointly with x and the cube root of 2. If when x=2 and...
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![4. By revolving the semicircle x = cost, y = sint (0 <t < T) about the
x-axis, show that the surface area of a sphere of radius r is 4rr2.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9f14b173-c419-4131-a8fa-125958669709%2F47e504ea-cc86-4759-8622-d26a3b95de06%2Fd96nnk_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4. By revolving the semicircle x = cost, y = sint (0 <t < T) about the
x-axis, show that the surface area of a sphere of radius r is 4rr2.
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