The following four methods are expected to compute 21/3. Assuming po = 1, 1. Rank them in order analytically, based on their apparent speed of convergence. 2. Write a Python program to show...

Extracted text: The following four methods are expected to compute 21/3. Assuming po = 1, 1. Rank them in order analytically, based on their apparent speed of convergence. 2. Write a Python program to show convergence of each method providing step-by-step output. 20pn-1+ 21/p-1 Pn = (a) 21 3 Pn-1 3pn-1 21 Pn = Pn-1 (b) Pn-1 - 21pn-1 Pn = Pn-1 (c) Pn-1 - 21 21 -)1/2 Pn-1 Pn = (d)