Question

determine the polynomial F of degree 2 that interpolates. f at points (0;1) (2;5) (4;6). calculate F(0.8). Note: Using the polynomial expression with difference operator.

222

likes
1110 views

Answer to a math question determine the polynomial F of degree 2 that interpolates. f at points (0;1) (2;5) (4;6). calculate F(0.8). Note: Using the polynomial expression with difference operator.

Expert avatar
Tiffany
4.5
103 Answers
Para determinar o polinômio F de grau 2 que interpola f nos pontos (0,1), (2,5) e (4,6), usaremos a expressão de polinômio com operador diferença.

Primeiro, vamos calcular as diferenças divididas de ordem 1:

\Delta y_0 = y_1 - y_0 = 5 - 1 = 4
\Delta y_1 = y_2 - y_1 = 6 - 5 = 1

Agora, calculamos as diferenças divididas de ordem 2:

\Delta^2 y_0 = \Delta y_1 - \Delta y_0 = 1 - 4 = -3

A partir dessas diferenças divididas, podemos construir o polinômio interpolador de Newton:

F(x) = y_0 + \Delta y_0 \cdot (x - x_0) + \Delta^2 y_0 \cdot (x - x_0) \cdot (x - x_1)

Substituindo os valores conhecidos:

F(x) = 1 + 4x - 3x^2

Agora, para calcular F(0,8), substituímos x por 0,8 na expressão de F(x):

F(0,8) = 1 + 4 \cdot 0,8 - 3 \cdot (0,8)^2

Calculando:

F(0,8) = 1 + 3,2 - 1,92

F(0,8) = 2,28

Portanto, o valor de F(0,8) é igual a 2,28.
Answer: F(0,8) = 2,28

Frequently asked questions (FAQs)
What is the product of two consecutive integers when their sum is 9?
+
Math question: What is the y-coordinate of the point where the exponential function y = 2^x intersects the x-axis?
+
What is the symmetry of the parabola described by the function y = ax^2?
+
New questions in Mathematics
1 + 1
Use the elimination to find the solution to each linear system. X+y=43 2x-y=20
Suppose a large shipment of cell phones contain 21% defective. If the sample of size 204 is selected, what is the probability that the sample proportion will differ from the population proportion by less than 4% round your answer to four decimal places
Let f(x) = x² − 1. Find the equation of the tangent line to the graph of f at the point x0 = 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.
Reparameterize the curve r(t)= cos(t)i without (t)j (t)k by the arc length.
4x/2+5x-3/6=7/8-1/4-x
Solve : 15/16 divide 12/8 =x/y
The market for economics textbooks is represented by the following supply and demand equations: P = 5 + 2Qs P = 20 - Qd Where P is the price in £s and Qs and Qd are the quantities supplied and demanded in thousands. What is the equilibrium price?
Shows two blocks, masses 4.3 kg and 5.4 kg, being pushed across a frictionless surface by a 22.5-N horizontal force applied to the 4.3-kg block. A. What is the acceleration of the blocks? B. What is the force of the 4.3-kg block on the 5.4 -kg block? C. What is the force of the 5.4 -kg block on the 4.3 -kg block?
X³-27
Congratulations, you have saved well and are ready to begin your retirement. If you have $1,750,000.00 saved for your retirement and want it to last for 40 years, and will earn 10.8% compounded monthly: What is the amount of the monthly distribuion? 216.50 How much interest is earned in retirement?
7.57 Online communication. A study suggests that the average college student spends 10 hours per week communicating with others online. You believe that this is an underestimate and decide to collect your own sample for a hypothesis test. You randomly sample 60 students from your dorm and find that on average they spent 13.5 hours a week communicating with others online. A friend of yours, who offers to help you with the hypothesis test, comes up with the following set of hypotheses. Indicate any errors you see. H0 :x ̄<10hours HA : x ̄ > 13.5 hours
A person runs 175 yards per minute write a variable that represents the relationship between time and distance
Let N be the total number of ways to choose at least one ride, out of a total of 7 different ones, existing in an amusement park. Can it be said that N is a natural number equal to?
a) 6x − 5 > x + 20
simplify w+[6+(-5)]
How much does 7.2 moles of ammonium dichromate weigh? (NH4)2Cr2O7
calculate the product of 4 and 1/8
The length of a rectangle is five more than its width. if the perimeter is 120, find both the length and the width.