Newton's method is concerned with the following recursion formula: f (xn) f'(xn)' Xn+1 = Xn beginning with a starting value xo. (a) Show that the recursion formula for f(x) = x² -a is xn+1 = + 2x, (b) Assuming that an → > 0, find its limit, justifying your response.

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Chapter2: Second-order Linear Odes
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Newton's method is concerned with the following recursion formula:
f (xn)
Xn+1 = Xn f'(xn)'
-
beginning with a starting value xo.
(a) Show that the recursion formula for f(x) = x²-a is xn+1 =
(b) Assuming that xn →l> 0, find its limit, justifying your response.
a
x₂ + 2xn"
Transcribed Image Text:Newton's method is concerned with the following recursion formula: f (xn) Xn+1 = Xn f'(xn)' - beginning with a starting value xo. (a) Show that the recursion formula for f(x) = x²-a is xn+1 = (b) Assuming that xn →l> 0, find its limit, justifying your response. a x₂ + 2xn"
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