Calculate the following: a. Find the Maclaurin series of cos(x) and find the radius of this series, without using any known power or Maclaurin series, besides geometric. b. Find exactly the series of cos(-2x) c. Evaluate the indefinite integral, ((cos(x)-1-(x^2/2))/x^4)dx, as an infinite series

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Calculate the following:

a. Find the Maclaurin series of cos(x) and find the radius of this series, without using any known power or Maclaurin series, besides geometric.

b. Find exactly the series of cos(-2x)

c. Evaluate the indefinite integral, ((cos(x)-1-(x^2/2))/x^4)dx, as an infinite series 

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