Calculus Concepts: An Informal Approach to the Mathematics of Change 5th Edition

Published by Brooks Cole
ISBN 10: 1-43904-957-2
ISBN 13: 978-1-43904-957-0

Chapter 5 - Accumulating Change: Limits of Sums and the Definite Integral - 5.5 Activities - Page 373: 17

Answer

$$F\left( z \right) = - \frac{1}{z} + {e^z} + \left( {\frac{3}{2} - {e^2}} \right)$$

Work Step by Step

$$\eqalign{ & f\left( z \right) = \frac{1}{{{z^2}}} + {e^z};\,\,\,\,\,F\left( 2 \right) = 1 \cr & \cr & {\text{Write a formula }}F\left( z \right){\text{ for the antiderivative of }}f\left( z \right) \cr & F\left( z \right) = \int {\left( {\frac{1}{{{z^2}}} + {e^z}} \right)} dz \cr & F\left( z \right) = \int {{z^{ - 2}}} dz + \int {{e^z}} \cr & \cr & {\text{integrate }} \cr & F\left( z \right) = \frac{{{z^{ - 1}}}}{{ - 1}} + {e^z} + C \cr & F\left( z \right) = - \frac{1}{z} + {e^z} + C \cr & \cr & {\text{Use the condition }}F\left( 2 \right) = 1{\text{ to find }}C \cr & 1 = - \frac{1}{2} + {e^2} + C \cr & C = \frac{3}{2} - {e^2} \cr & \cr & {\text{The specific antiderivative of }}f{\text{ is}} \cr & F\left( z \right) = - \frac{1}{z} + {e^z} + \left( {\frac{3}{2} - {e^2}} \right) \cr} $$
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