
(12 points) Find az, a4, and as of the sequences. (6) a. q = 1, 02...
1. Let az, az, az, a4 are vectors in R3. Suppose that az 3a1 – 2a3 + 84. (a) Are aj, aj, az, a4 linearly independent? (b) Suppose that ai, az, a4 are linearly independent. What is the dimension of the span{a1, az, az, a4}? (c) Is the set of vectors aj, az, az, a4 form a basis of R3? Explain your reasoning. (d) Form a basis of R3 using a subset of ai, a2, a3, 24.
1. For each of the following sequences, determine whether it converges. If so, find the limit. 2n+1 5n-2 a. b. 4. =(-1)"." 2n 2"-1 c. n
(10 points) Determine whether the sequences are increasing, decreasing, or not monotonic. If increasing, enter 1 as your answer. If decreasing, enter -1 as your answer. If not monotonic, enter 0 as your answer n + 3. an +2 2n +8 Note: In order to get credit for this problem all answers must be correct You have attempted this problem 0 times. You have unlimited attempts remaining. 12 F1O F9 F8 F6 F5
(10 points) Determine whether the sequences are...
answers provided
1. Are the following sequences well ordered as € +0? If not, arrange them so that they are. (a) Mn = (sinh(6/2)]2n for n = 0,1,2,3,... (b) $i = e$e-8/6, p=e, pos = eln(e), pa=e", $s = = sin(eº), po = inte (c) $1 = {€ – 1 – €, 02 = {€ – 1, $3 = e, $4 = {€ – 1 (d) An = e-1/e" for n = 0,1, 2, 3, ... (a) yes (b) no...
number 4
1. Find the limit of the following sequences (find lim an) n n a.) an = n +3 b.) an = V35n n- 2. Determine whether the following series converge or diverge. -3 (n + 2)n + 5 b.) tan-'(n) n2 + 1 a.) 5 nel 3. Determine the radius of convergence and the interval of convergence of the series 2" (x – 3)" n n=1 n=0 (-1)", 2n 4. Using the power series cos(x) (2n)! (-« <...
number 4 as clearly as possible
1. Find the limit of the following sequences (find lim an) n n a.) an = n +3 b.) an = V35n n- 2. Determine whether the following series converge or diverge. -3 (n + 2)n + 5 b.) tan-'(n) n2 + 1 a.) 5 nel 3. Determine the radius of convergence and the interval of convergence of the series 2" (x – 3)" n n=1 n=0 (-1)", 2n 4. Using the power series...
Part D,E,F,G
10. Let p(x) +1. Let E be the splitting field for p(x) over Q. a. Find the resolvent cubic R(z). b. Prove that R(x) is irreducible over Q. c. Prove that (E:Q) 12 or 24. d. Prove: Gal(E/Q) A4 or S4 e. If p(x) (2+ az+ b)(a2 + cr + d), verify the calculations on page 100 which show that a2 is a root of the cubic polynomial r(x)3-4. 1. f. Prove: r(x) -4z 1 is irreducible in...
6. ... / 6 points) Determine if the following sequences converge or diverge. If they converge, give the limit. (a) an = (-1)" n+1 n (b) an = n In(n)
DSP
4. (12 points) (a) (4 points) Let x[n] = {1,2, 1, 2} and h[n] = {1,-1,1, -1} be two length-4 sequences defined for 0 <n<3. Determine the circular convolution of length-4 y[n] = x[n] 4 hin). (b) (6 points) Find the 4-point discrete Fourier transform (DFT) X[k], H[k], and Y[k]. (c) (2 points) Find the 4-point inverse DFT (IDFT) of Z[k] = {X[k]H[k].
2 Determine whether the following the following sequences converge or diverge. If it converges, find the limit. (a) an = cos () 2n (b) a = In 2n + 1 3 (a) Does Î- (-)" converge or diverge? If it converges, find its sum. n=1 (b) Show how > 41-13-" can be written in the form of a geometric series. Does it converge or diverge? If it converges, find its sum. n=1