Question 11 Consider the following sequence: 0-2 1.3 4.4 2 X2= 3 Хо- X1 - 13 X3 9.5 4 ... Calculate the general formula of this sequence. What is the value of X4? • do not write unevaluated expressions (don't use 12/4+1, use 4) • do not leave fractions, write decimal points (don't use 1/2, use 0.5) do not use Turkish a,bcd notation (do not use 1,234 use 1.234)
Question 11 Consider the following sequence: 0 3 8 X2 6' X3 X 4 = 15 8 1... Calculate the general formula of this sequence. What is the value of X5? do not write unevaluated expressions (don't use 12/4+1, use 4) • do not leave fractions, write decimal points (don't use 1/2, use 0.5) • do not use Turkish a,bcd notation (do not use 1,234 use 1.234)
Xo - ? Consider the following sequence: 0.2 1.3 4.4 X1 2 9.5 X2 - Xz Calculate the general formula of this sequence. What is the value of X 4?
Question 1 [10 points] Suppose that the sequence xo, X1, X2... is defined by xo = 2, x1 = 1, and Xk+2 = Xk+1+2xk for k>0. Find a general formula for xk. Be sure to include parentheses where necessary, e.g. to distinguish 1/(2k) from 1/2k. . xk = 0 Official Time: 22:32:44 SUBMIT AND MARK SAVE AND CLOSE
、 | | xo = 0 Xi = 2 x2 = 4 f(x) = 2 f(x1) = 6 f(x2) – 10 Consider the differential equation dy – Ax+ 4 where A is a constant. dx Let y = f(x) be the particular solution to the differential equation with the initial condition f(0) = 2. Euler's method, starting at x = 0) with a step size of 2, is used to approximate f(4). Steps from this approximation are shown in the...
We work with a sequence with a recursive formula is as follows, Xo = x1 = x2 = 1; In = In-2 + In-3, n > 3. The sequence therefore looks like: 1,1,1, 2, 2, 3, 4, 5, 7, 9, 12,... For example, x3 = x1 + x0 = 1+1 = 2, 24 = x2 + x1 = 2, and x5 = x3 + x2 = 3, X6 = x4 + x3 = 4, 27 = X5 + x4 =...
Let a sequence Xo, X1,X2,... be defined in the following way: X12 1) Compute the first 10 terms of this sequence. (2 points) 2) Prove that this sequence is strictly increasing, .e., Vn 20:X >X. (2 points) 3) Prove that Vn 20: Xn S4". What are the base cases? What is the inductive step? (5 points) 4) The above result suggests that this sequence grows in the worst case exponentially, i.e., X 0(4). Consider trying to tighten this bound in...
Q6 (4+3+3+ 6=16 marks) Let Xo, X1, X2 be three distinct real numbers. For polynomials p(x) and q(x), define < p(x),q(x) >= p(xo)q(x0) + p(x1)q(x1) + p(x2)q(22). Let p(n) denote the vector space of all polynomials with degree more no than n. (i) Show that < .. > is an inner product in P(2). (ii) Is < ... > an inner product in P(3)? Explain why. (iii) Is <,:> an inner product in P(1)? Explain why. (iv) Consider Xo =...
Consider the following. (x1 - x2 + 4x3 = 20 3x + 332 = -4 -6x2 + 5x3 = 32 (a) Write the system of linear equations as a matrix equation, AX = B. 14 X1 I X2 = IL X3] (b) Use Gauss-Jordan elimination on [ A B] to solve for the matrix X. X2
2. Consider the following function: f (x1, x2) = x1 – 2V82 (a) Write down the Hessian matrix. (b) Is the function convex at the point (x1 = 1, X2 = 2)?