Posted by kayla on Tuesday, November 22, 2011 at 1:22am.
Use Newton's method to approximate the value of
(543)^(1/5) as follows:
Let x1=2 be the initial approximation.
find x2 and x3 =? approximation

typo?  MathMate, Tuesday, November 22, 2011 at 7:21am
The question is not completely defined.
Newton's method is for solving an equation.
(543)^(1/5) is an expression that does not contain unknowns.
Please check for typo.

calculus, math  Reiny, Tuesday, November 22, 2011 at 9:09am
543^(1/5) is the solution to
x^5 = 543 or
x^5  543 = 0
let y = x^5  543
y' = 5x^4
newx = x  y/y' = x  (x^5  543)/(5x^4)
= (4x^5 + 543)/(5x^4)
x2 = 8.3875
x3 = 6.7319
x4 = 5.4384
x5 = 4.3507
x6 = 3.480576
x7 = 3.524449
x8 = 3.5233845
x9 = 3.523384
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