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
104 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)
Question: What is the definite integral of f(x) = 2x^3 + 5x^2 - 3x + 4 from x = -1 to x = 3?
+
How many different ways can 5 people be lined up in a row?
+
What is the condition for two triangles to be congruent?
+
New questions in Mathematics
2x-y=5 x-y=4
The director of a company must transfer 6 people from the human resources department to the sales department, in order to sustain sales during the month of December. What is the probability that he will transfer only 2 of them?
(5u + 6)-(3u+2)=
The beta of a company is 1,41 and its cost of equity 18,95%. What is then the market risk premium if the risk free rate is 0,94%? (in %, 2 decimal places)
Divide 22 by 5 solve it by array and an area model
A pair of die is thrown and the absolute difference of the two scores is recorded. What is the probability of the absolute difference being 4 or more?
In a grocery store, when you take out 3 peppers and 4 carrots, there are 26 peppers and 46 carrots left. How many peppers and carrots were there initially?
The price per night of a suite at the Baglioni Hotel in Venice is 1896 euros, VAT included. The VAT in Italy is 25%. The hotel gets a return of 10% out of the price VAT included. a) What is the amount of VAT paid by the hotel for one
A circular window has a rubber molding around the edge. If the window has a radius of 250 mm, how long is the piece of molding that is required ? (To the nearest mm)
3 A tree is planted when it is 1.2 m tall. Every year its growth is 3/8 of its previous year's height. Find how tall the tree will grow.
Calculate the difference between 407 and 27
find missing measure for triangle area = 48 m square base = 10m heaighy = ? m
At the end of a lively discussion within your study group, your class neighbor, for the relevance of your points of view, asks your opinion on the subject of their debate which is the following question Am I the slave of my unconscious? Solve the problem posed by this subject in an argumentative production.
0<x<2π aralığındaki f(x)=x÷2 fonksiyonunun 0 < x < 4π için grafiğini çiziniz ve 0<x<2n için Fourier seri dönüşümünü gerçekleştiriniz.
8. Measurement Jillian measured the distance around a small fish pond to be 27 yards. What would be a good estimate of the distance across the pond: 14 yards, 9 yards, or 7 yards? Explain how you decided.
Solve for z: 2z-6=10z+2
a coffee shop has 9 types of creamer and 11 types of sweetener. In how any ways can a person make their coffee?
y’’ -4y’ +4y = (12x^2 -6x)e^2x Y(0)= 1 Y’(0)=0 Y(x)=c1y1+c2y2+yp
(3b)⋅(5b^2)⋅(6b^3)
The car with an irresponsible driver starts to brake when it goes through a red light. When passing the traffic light, he does so at a speed of 115 kph in the right lane. Further ahead, 70 meters from the traffic light, a child is crossing the street and falls. If the effect of the car's brakes is equivalent to a deceleration of magnitude 5.7m/s². Is the child hit by the car or not? How far from the traffic light does the car stop?