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)
What is the volume of a cylinder with radius 4 and height 8?
+
What is the variance of a data set {1, 2, 3, 4, 5}?
+
What is the value of x in the logarithmic equation log(x) = 3.5?
+
New questions in Mathematics
a to the power of 2 minus 16 over a plus 4, what is the result?
10! - 8! =
5/8 x 64
two particles start at the origin and move along the x axis. for 0 <= t <= 10, their respective position functions are given by x1 = cos(t) and x2 = (e^-3t) + 1. for how many values of t do the particles have the same velocity?
Find the equation of the normal to the curve y=x²+4x-3 at point(1,2)
Determine the correct value: A company knows that invoices pending collection have a normal distribution with a mean of $1.65 million, with a standard deviation of $0.2 million, then: The probability that an invoice pending collection has an amount that is within more than 2 deviations below the mean, is:
I) Find the directional derivative of 𝑓(𝑥, 𝑦) = 𝑥 sin 𝑦 at (1,0) in the direction of the unit vector that make an angle of 𝜋/4 with positive 𝑥-axis.
Determine the equations of the lines that pass through the following points P1 (2;-1) and p2 (4;-1)
Find the root of x^4-10x^ 5=0 using Newton's method, with a precision of the smallest positive root.
Suppose 50% of the doctors and hospital are surgeons if a sample of 576 doctors is selected what is the probability that the sample proportion of surgeons will be greater than 55% round your answer to four decimal places
12(3+7)-5
Task 1 angel has 3 quarters 3/8 of a tank of gasoline and Miguel 7/8, who has more gasoline? number line on number line
Suppose you have a sample of 100 values from a population with mean mu = 500 and standard deviation sigma = 80. Given that P(z < −1.25) = 0.10565 and P(z < 1.25) = 0.89435, the probability that the sample mean is in the interval (490, 510) is: A)78.87% B)89.44% C)10.57% D)68.27%
A person decides to invest money in fixed income securities to redeem it at the end of 3 years. In this way, you make monthly deposits of R$300.00 in the 1st year, R$400.00 in the 2nd year and R$500.00 in the 3rd year. Calculate the amount, knowing that compound interest is 0.6% per month for the entire period. The answer is 15,828.60
If A and B are any events, the property that is not always true is: a) 0 ≤ 𝑃(𝐴 ∩ 𝐵) ≤ 1 b) 𝑃(Ω) = 1 c) 𝑃(𝐵) = 1 − 𝑃(𝐵𝑐) d) 𝑃(∅) = 0 e) 𝑃(𝐴 ∪ 𝐵) = 𝑃(𝐴) + 𝑃(𝐵)
cube root of 56
7- A printing company found in its investigations that there were an average of 6 errors in 150-page prints. Based on this information, what is the probability of there being 48 errors in a 1200-page job?
x²-7x+12=0
The perimeter of a rectangular rug is 42 feet. The width is 9 feet. What is the length?
97,210 ➗ 82 division