Consider the series following series of functions ' sin(nx) 3 n-1 a) Show that the series is absolutely and uniformly convergent on the real axis. Let f be its summation function n sin(nx) b) Sho...
1. Consider the series n=2 Is it divergent, conditionally convergent or absolutely convergent? Explain. 2. Suppose you know that 2n+1 sin(x) = Ž (-1)" 2** * Explain how to use this to show that cos(x) = ŽC-1) HINT: What is sin(x)?
4. (a) Indicate where the series is (i) absolutely convergent, n-1 where it is (ii) conditionally convergent, and where it is (iii) divergent. Justify your answers Find f,(z) if f(x) = arctan (e* ) + arcsin V2x + 4. (b) (a) Set up (but do not evaluate) a definite integral that represents the area 5. of the region R inside the circle r = 4 sin θ and outside the circle r = 2. Carefully sketch the region R. (i)...
(-1)-1 n2 is absolutely convergent. 1. (2 points) Prove that cos n is convergent or divergent. 2. (2 points) Determine whether the series - (Use cos n<1 for all n) 3. (3 points) Test the series -1) 3 for absolute convergence. (Use the Ratio Test) 2n +3) 4. (3 points) Determine whether the series converges or diverges. 3n +2 n-1 (Use the Root Test) 5. (3 points) Find R and I of the series (z-3) 1 Find a power series...
Fourier Series please answer no. (2) when p=2L=1 - cos nx dx = bn(TE) +277 f(x) sin nx dx (- /<x< 1 2) p=1 2. f(x) = = COS TEX 3. Find the Fourier series of the function below: f(x) k 2 1-k Simplification of Even and Odd Function:
3. Let W (x, t) = (coswt)(a cos nx+b sin nx) and (x, t) = (exp -kn-t)(a cos nx+ bsin nx). Here n is a positive integer, 2,t are real variables, and a, b,w, k are real constants with k positive. a. Evaluate W(x,0), H (2,0) and əW/ət(x,0) for all c. b. Show OH/ət = k(32H/8x2) for all x,t. c. Find some positive constant c so that w2w/at2 = c(32W/8x?) for all x, t.
Let fn (x) = 1 + (nx)? {n} are differentiable functions. (a) Show that {fn} converges uniformly to 0. (b) Show that .., XER, NEN. converges pointwise to a function discontinuous at the origin.
38. Show that each element ofC* is uniquely determined by its Fourier series. That is, show that if f EC2. and iff. f(x)cos nx dx =0, andr. f(x) sin nx dx =0 for all n = 0, 1, 2, . . . . then f = 0, [Hint: For an easy proof, modify the argument used in Application 11.6.] 38. Show that each element ofC* is uniquely determined by its Fourier series. That is, show that if f EC2. and...
1. (a) Let {fn}neN : [0,00) + R be a sequence of function define by: sin(nx) fn(x) 1+ nx (i) Guess the pointwise limit f of fn on (0,00) and justify your claim. [15 Marks] (ii) Show that fn + f uniformly on ſa, 00), Va > 0. [10 Marks) (iii) Show that fn does not converge uniformly to f on (0,00) [10 Marks] (Hint: Show that ||fr|| 21+(1/2) (b) Prove that a continuous function f defined on a closed...
5. For any real number L > 0, consider the set of functions fx(x) = cos ("I") and In(x) = sin (^) se hos e mais a positive in where n is a positive integer. Show that these functions are orthonormal in the sense that (a) 1 L È Lsu(w) m(e)dx = {if m=n. fn (2) fm(x) dx = {. if m En if m =n -L 1 L il fn(x)9m(x)dx = 0 (c) il 9.(X)gm()dx = {{ if m=n...
1) (35 points) The wave function for a particle moving along x axis between the limits 0 and L is: (x)-C sin (nx xL) where n are 1, 2, 3, A) Determine the normalization constant C B) Why can't n take the value of 0, briefly explain C) For n-3 determine the values of x (in terms of L) that correspond to a maximum or a minimum in the wave function D) For n-3 determine the values of x (in...