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Use the Lagrange interpolating polynomial of degree 3 or less and four-digit chopping arithmetic to approximate cos 0.750 using the following values. Find an error bound for the approximation.
The actual value of
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Chapter 3 Solutions
Numerical Methods
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- Stan(x)√√2+ √√4 59 4 + cos(x)dxarrow_forwardNo chatgpt pls will upvotearrow_forwardIf a snowball melts so that its surface area decreases at a rate of 10 cm²/min, find the rate (in cm/min) at which the diameter decreases when the diameter is 12 cm. (Round your answer to three decimal places.) cm/minarrow_forward
- या it 11 if the mechanism is given, then using Newton's posterior formula for the derivative Lind P(0.9) × 0 0.2 0.4 0.6 0.8 1 f 0 0.12 0.48 1.1 2 3.2arrow_forwardConsider an MA(6) model with θ1 = 0.5, θ2 = −25, θ3 = 0.125, θ4 = −0.0625, θ5 = 0.03125, and θ6 = −0.015625. Find a much simpler model that has nearly the same ψ-weights.arrow_forwardLet {Yt} be an AR(2) process of the special form Yt = φ2Yt − 2 + et. Use first principles to find the range of values of φ2 for which the process is stationary.arrow_forward
- Describe the important characteristics of the autocorrelation function for the following models: (a) MA(1), (b) MA(2), (c) AR(1), (d) AR(2), and (e) ARMA(1,1).arrow_forwarda) prove that if (x) is increasing then (x~) is bounded below and prove if (is decrasing then (xn) is bounded above- 6) If Xn is bounded and monotone then (Xa) is Convergent. In particular. i) if (xn) is bounded above and incrasing then lim xn = sups xn: ne№3 n700 ii) if (X) is bounded below and decrasing then I'm Xn = inf\x₂,neN} 4500 143arrow_forward5. Consider the following vectors 0.1 3.2 -0-0-0 = 5.4 6.0 = z= 3 0.1 For each of exercises a-e, either compute the desired quantity by hand with work shown or explain why the desired quantity is not defined. (a) 10x (b) 10-27 (c) J+Z (d) (x, y) (e) (x, z)arrow_forward
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