Question: 6.15 The divide and average method, an old-time method for approximating the square root of any positive number a, can be formulated as x=(x+(a/x))/2 Prove

6.15 The "divide and average" method, an old-time method for approximating the square root of any positive number a, can be formulated as

x=(x+(a/x))/2

Prove that this is equivalent to the Newton-Raphson algorithm.

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