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Please show your work clearly.. Thanks As discusscd in class (and in the textboo

ID: 2829119 • Letter: P

Question

Please show your work clearly.. Thanks

As discusscd in class (and in the textbook in section 11.4), to solve the equation f(x) = 0 by Newton's Method we start with a good initial guess .To and then run the iteration until we get an approximation xn+i that is good enough for our purposes. Suppose you want to compute the cube root of 4 by solving the equation x3-4=0. Since 13 = 1 and 23 = 8 let's start with x0 = 1.5 Then To check your answer compute x33= Enter x1, x2 and x3 with at least 6 correct digits beyond the decimal point.

Explanation / Answer

x1 = 1.5 - [(1.5^3-4)] / 3. (1.5^2)

=> 1.5 +0.625/6.75

=> 1.592592

x2 =>1.592592- [(1.592592^3-4)] / 3. (1.592592^2)

  => 1.592592 - 0.039374/7.609053

=> 1.587417

x3 = 1.587417 - [(1.587417^3-4)] / 3. (1.587417^2)

=> 1.587417- 0.000123/7.559678

=>1.587401

now x3^3 = 3.999999 ~ 4