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)
Math question: Evaluate √(3^2 + 4^2)
+
Question: In a triangle ABC, AB = 5, BC = 6, and AC = 8. Find the measure of angle C.
+
What is the median of the set {2, 5, 7, 11, 14}?
+
New questions in Mathematics
Pedro bought 9 kg of sugar at the price of R$1.80 per kilogram, six packets of coffee at the price of R$3.90 per packet and 8 kg of rice at the price of R$2.70 per kilogram. Knowing that he paid for the purchases with a R$100.00 bill, how much change did he receive?
431414-1*(11111-1)-4*(5*3)
I need .23 turned into a fraction
58+861-87
The graph of the equation x²= 4py is a parabola with focus F(_,_) and directrix y=_____ Therefore, the graph of x²=12y is a parabola with focus F(_,_) and a directrix y=_____
The sum of two numbers is 6, and the sum of their squares is 28. Find these numbers exactly
what is the annual rate on ​$525 at 0.046​% per day for 3 months?
7/6-(-1/9)
2/3+5/6×1/2
A company that manufactures personal hygiene items purchases machinery for $220,000 that is considered to last 7 years; it is estimated that at the end of the period it will have a salvage value of $1000. Find: to. The depreciation rate. b. The book value at the end of the sixth year.
Find 2 numbers whose sum is 47 and whose subtraction is 13
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
Estimate the quotient for 3.24 ÷ 82
Convert 9/13 to a percent
John he’s going to the carnival with his friends. He spends $25 on an admission ticket. He buys 10 games at X dollars each and two boxes of popcorn at Y dollars each. Write an expression to show the total cost of admission game, tickets and popcorn.
P(Z<z)=0.1003
9.25=2pi r solve for r
Find the vertex F(x)=x^2-10x
Perform operations with the polynomials P(x) = x3 and Q(x) = 2x2 + x – 3x3 : a) P(x) - Q(x)
2.3 X 0.8