Posted by Anonymous on Wednesday, April 13, 2011 at 7:42pm.
Use Newton's method to solve the equation sec x = 4 in the interval x in (0, pi/2).
In other words, use Newton's Method to compute arcsec(4).
(You need to make a good initial guess for the root otherwise Newton's method will probably fail. Please justify how you came up with your initial guess. Stop the iteration process
when you are correct to 4 decimal places.)
calculus - bobpursley, Wednesday, April 13, 2011 at 8:01pm
You need to be doing this on your calculator.
I will start you.
sec 78=4.8 lower
sec 76.5=4.28 lower
sec 76=4.13 lower
sec 75.5=3.99 higher
sec 75.51=3.9966 higher
sec 75.515=3.99797 higher
sec 75.525=4.00067 lower
with practice, you get pretty good.
calculus - Anonymous, Wednesday, April 13, 2011 at 8:27pm
thanks but i need to use newton's method for this.... i tried it by starting with 1 but do not get an answer. :s
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