Question

Use Newton’s Method with the initial approximation x1=2 to find the third approximation to the root. Round your answer to 5 decimal places. f(x)=−3x^5+2x^4+8x^3+2

152

likes
762 views

Answer to a math question Use Newton’s Method with the initial approximation x1=2 to find the third approximation to the root. Round your answer to 5 decimal places. f(x)=−3x^5+2x^4+8x^3+2

Expert avatar
Birdie
4.5
103 Answers
To find the next approximation using Newton's Method, we need to follow these steps:

Given function f(x) = -3x^5 + 2x^4 + 8x^3 + 2 .

1. Find the derivative of the function f(x) :
f'(x) = \frac{d}{dx}(-3x^5 + 2x^4 + 8x^3 + 2)
f'(x) = -15x^4 + 8x^3 + 24x^2

2. Substitute the initial approximation x_1 = 2 into the formula for Newton's Method to get the second approximation:
x_2 = x_1 - \frac{f(x_1)}{f'(x_1)}

x_2 = 2 - \frac{-3(2)^5 + 2(2)^4 + 8(2)^3 + 2}{-15(2)^4 + 8(2)^3 + 24(2)^2}
x_2 = 2 - \frac{-96 + 32 + 64 + 2}{-240 + 64 + 96}
x_2 = 2 - \frac{2}{-80}
x_2 = 2 + 0.025
x_2 = 2.025

Therefore, the third approximation to the root is x_3 = 2.025 .

\boxed{x_3 = 2.025}

Frequently asked questions (FAQs)
Math question: Graph the inequality 2x + 3y ≤ 10 on a coordinate plane. (
+
What is the minimum and maximum value of the function f(x) = 2x^3 - 9x^2 + 12x - 5 in the interval [0,5]?
+
What is the radius of a circle given an equation of the form x^2 + y^2 = r^2?
+
New questions in Mathematics
what is 456456446+24566457
The length and breadth of my rectangular vegetable garden is 12,5m and 7,25m respectively. What is the perimeter of the garden?
58+861-87
Elliot opened a savings account and deposited $5000.00 as principal. The account earns 4% interest, compounded annually. How much interest will he earn after 5 years? Round your answer to the nearest cent.
(6.2x10^3)(3x10^-6)
Find the measures of the sides of ∆KPL and classify each triangle by its sides k (-2,-6), p (-4,0), l (3,-1)
Determine the momentum of a 20 kg body traveling at 20 m/s.
A National Solidarity Bond offers A 5 year bond offering a gross return of 15% Calculate the AER for this investment. (Give your answer to two decimal places, no need for the percent or € sign in your answer)
How many anagrams of the word STROMEC there that do not contain STROM, MOST, MOC or CEST as a subword? By subword is meant anything that is created by omitting some letters - for example, the word EMROSCT contains both MOC and MOST as subwords.
The physician orders 15mg of tramadol(liquid). On hand is 30mg/2mL vials. How many mL will the MA administer?
In the telephone exchange of a certain university, calls come in at a rate of 5 every 2 minutes. Assuming a Poisson distribution, the average number of calls per second is: a) 1/8 b) 1/12 c) 1/10 d) 2/5 e) 1/24
A researcher is interested in voting preferences on change of the governing constitution in a certain country controlled by two main parties A and B. A questionnaire was developed and sent to a random sample of voters. The cross tabs are as follows Favour Neutral Oppose Membership: Party A 70 90 85 Party B 50 50 155 Test at α = 0.05 whether party membership and voting preference are associated and state the conditions required for chi-square test results to be valid.
48 kg of 30% sulfuric acid in a mixture of 10% and 40% sulfuric acid arose. How many kilograms were each of the original solutions?
1. A jeweler has two gold bars, with 80% purity and the other with 95% purity. How much of each must be melted to obtain a 5 kilo ingot with 86% purity?
Solve for B write your answer as a fraction or as a whole number. B-1/7=4
An election ballot asks voters to select three city judges from a group of 12 candidates. How many ways can this be done?
calculate the product of 4 and 1/8
How many digits are there in Hindu-Arabic form of numeral 26 × 1011
5a-3.(a-7)=-3
In a cheese factory, one pie costs 3800 denars. The fixed ones costs are 1,200,000 denars, and variable costs are 2,500 denars per pie. To encounter: a) income functions. profit and costs; b) the break-even point and profit and loss intervals.