Thomas' Calculus 13th Edition

Published by Pearson
ISBN 10: 0-32187-896-5
ISBN 13: 978-0-32187-896-0

Chapter 6: Applications of Definite Integrals - Section 6.2 - Volumes Using Cylindrical Shels - Exercises 6.2 - Page 329: 8

Answer

$\pi$

Work Step by Step

We need to use the shell model as follows: $V=\int_p^{q} (2 \pi) \cdot (\space radius \space of \space shell) ( height \space of \space Shell) \space dx$ $ \implies V= \int_0^{1} (2 \pi) \cdot (x)[\dfrac{3x}{2}] dx$ Now, $V= \pi \times \int_{0}^{1} [3x^2] dx$ or, $= \pi \times [x^3]_{0}^{1}$ or, $= \pi$
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