Consider the following functions. fy(x) = x, fz(x) = x2, f3(x) = 2x - 4x2 g(x)...
Determine whether the given set of functions is linearly independent on the interval (−∞, ∞) f1(x) = x f2(x) = sin(x) f3(x) = sin(2x)
Problem #2: Which of the following sets of functions are linearly independent on the interval (-0, c.)? [2 marks] (i) f1(x) = x, f2(x) = 4x, 13(x) = = x2 +6 (ii) f1(x) = 2e2x, 12(x) = 4e4x, f3(x) = 8e8x (iii) f1(x) = 8sinx, 12(x) = 4cos 2x, f3(x) 9 (A) (i) and (iii) only (B) (iii) only (C) none of them (D) (ii) only (E) all of them (F) (i) only (G) (i) and (ii) only (H) (ii)...
(1 point) Find the solution of 4x2 y" + 2x²y + y = 0, x > 0 of the form yı = x” (1 + (1x + c2x2 + c3x3 + ...) Enter r = Ci = C2 = C3 =
Are the functions fi (x) = ex+4 and fz(x-er-5 linearly dependent or independent? A. Linearty dependent OB. Linearly independent Which of the following best describes the correct choice for part (a)? (Carefull) 0 A. Since the only solution to cfı + c/2 = 0 is ci = c2-0. B. Since the Wronskian equals zero for at least one x on (-o, o). C. Since the Wronskian never equals zero on (-oo, oo). D. Since the functions are scalar multiples of...
(1 point) Calculate the Wronskian for the following set of functions: f1(x) = 0, f2(2) = 2.c +5, f3(2) = 1e" + b W(fi(2), f2(2), f3()) NO_ANSWER 1. Is the above set of functions linearly independent or dependent?
Problem 1: Consider a 2nd order homogeneous differential equation of the form aa2y"(x)bay(x) + cy = 0 (1) where a, b, c are constants satisfy so that y(x) = x (a) Find and justify what conditions should a constant m to (1) is a solution (b) Using your solution to (1) Write these three different cases as an equation that a, b,c satisfy. Hint: Use the quadratic formula we should get three different cases for the values that m can...
Are fi (x) = х, (x) = x2 , and f, (x) = 3x-8x2 linearly independent or linearly dependent on (-oo, oo)? O A. Linearly independent OB. Lineary dependent Are fiC) 3.f)sin (), and fs)co()linearly independent or linearly dependent on (-00, 00)? A. Linearly dependent B. Linearly independent 0 on the interval (-00, 00)? Arefi (x)-e-4x and fa (x)-es solutions to the differential equation y"-y-20y A. Yes B. No Are fi(x) -e and f(x) - e lineary independent or lineany...
(1 point) Are the functions f, g, and h given below linearly independent? f(x) = 621 + cos(9x), g(x) = 621 – cos(9x), h(x) = cos(9x). If they are independent, enter all zeroes. If they are not linearly independent, find a nontrivial solution to the equation below. Be sure you can justify your answer. (e24 + cos(9x)) + (e21 – cos(9x)) + (cos(9.x)) = 0.
17. Another way to check if y1, y2 are linearly INDEPENDENT in an interval I is: for all I for all I does not exist for all I d. none of the above 18. If y1 is a solution of the equation y "+ P (x) y '+ Q (x) y = 0, a second solution would be y2 (x) = u (x) y1 (x) where u (x) it is: d. all of the above 19. The following set...
3. Now suppose that (a,b), (a2, b2),..., (aq, be) are l distinct points on R2. Let X be the set formed by these l points. Prove that there are l vector fields F1, F2,..., Fe, each defined on R2X (the set R2 without the points in X), with the following properties: (i) curl F; = 0 on RP X for all i = 1, ..., l. (ii) (“linearly independent”) If C1,C2, ..., Ce are real numbers such that the vector...