Calculus 10th Edition

Published by Brooks Cole
ISBN 10: 1-28505-709-0
ISBN 13: 978-1-28505-709-5

Chapter 5 - Logarithmic, Exponential, and Other Transcendental Functions - Review Exercises - Page 394: 75

Answer

$$\frac{{dy}}{{dx}} = {\left( {\arcsin x} \right)^2}$$

Work Step by Step

$$\eqalign{ & y = x{\left( {\arcsin x} \right)^2} - 2x + 2\sqrt {1 - {x^2}} \arcsin x \cr & {\text{Differentiate}} \cr & \frac{{dy}}{{dx}} = \frac{d}{{dx}}\left[ {x{{\left( {\arcsin x} \right)}^2}} \right] - \frac{d}{{dx}}\left[ {2x} \right] + \frac{d}{{dx}}\left[ {2\sqrt {1 - {x^2}} \arcsin x} \right] \cr & {\text{Use the product rule}} \cr & \frac{{dy}}{{dx}} = x\frac{d}{{dx}}\left[ {{{\left( {\arcsin x} \right)}^2}} \right] + {\left( {\arcsin x} \right)^2}\frac{d}{{dx}}\left[ x \right] - \frac{d}{{dx}}\left[ {2x} \right] \cr & + 2\sqrt {1 - {x^2}} \frac{d}{{dx}}\left[ {\arcsin x} \right] + 2\arcsin x\frac{d}{{dx}}\left[ {\sqrt {1 - {x^2}} } \right] \cr & {\text{Compute derivatives}} \cr & \frac{{dy}}{{dx}} = 2x\left( {\arcsin x} \right)\left( {\frac{1}{{\sqrt {1 - {x^2}} }}} \right) + {\left( {\arcsin x} \right)^2} - 2 \cr & + 2\sqrt {1 - {x^2}} \left( {\frac{1}{{\sqrt {1 - {x^2}} }}} \right) + 2\arcsin x\left( { - \frac{{2x}}{{2\sqrt {1 - {x^2}} }}} \right) \cr & {\text{Simplifying}} \cr & \frac{{dy}}{{dx}} = {\left( {\arcsin x} \right)^2} \cr} $$
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