Homework Answers
wronskian
is never zero for any t so they are linearly independent so they
form fundamental set of solutions to Y'=AY
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2. (5pts Determine whether the following set of vectors is a fundamental set of solutions of...
A) Assume that y1(c) t and y2)te are solutions of the differential equation t2y_ t(t + 2))" + t(t...
a) Assume that y1(c) t and y2)te are solutions of the differential equation t2y_ t(t + 2))" + t(t + 2)y-0, t > 0 Do y1(t) and y2() form a fundamental set of solutions of the O.D.E.? C) State the general solution for this O.D.E.
a) Assume that y1(c) t and y2)te are solutions of the differential equation t2y_ t(t + 2))" + t(t + 2)y-0, t > 0 Do y1(t) and y2() form a fundamental set of solutions of...
(1 point) Which of the following vectors forms a fundamental set of solutions to the system...
(1 point) Which of the following vectors forms a fundamental set of solutions to the system of differential equations X') X? 0 6 0 21 6t 0 14t 0 0 6t. 6t
7. If y, and y2 are a fundamental set of solutions of t2y"-2/ + (3 +...
7. If y, and y2 are a fundamental set of solutions of t2y"-2/ + (3 + t)y = 0 and if won,n)(2) = 4, find the value of W(vi.v2)(3).
The vectors 3 X3 =|-6|+t|4 X2 х, =|-2|+ t 12 are solutions of a system X'...
The vectors 3 X3 =|-6|+t|4 X2 х, =|-2|+ t 12 are solutions of a system X' = AX Determine whether the vectors form a fundamental set of solutions.
2. [5pts] Given that y 1, e are solutions to the homogeneous version of the nonhomogeneous...
2. [5pts] Given that y 1, e are solutions to the homogeneous version of the nonhomogeneous DE below, verify that they form a fundamental set of solutions. Then, use variation of parameters to find the general solution y(t)
1. Consider a set of vectors S = {X1, X2, X3 } in which X1 =...
1. Consider a set of vectors S = {X1, X2, X3 } in which X1 = (1,0,0), X2 = (a, 1, -a), X3 = (1, 2, 3a +1) Determine the value (or values) of a for which the set Sabove is linearly independent (LI). 2. Consider a set of vectors T = {y1, y2.ya} in which yı = (1,2,0), y2 = (1, m,5), and y3 = (0,4, n) Determine a condition on m and n such that the set T...
Consider the differential equation, L[y] = y'' + p(t)y' + q(t)y = 0, (1) whose coefficients...
Consider the differential
equation, L[y] = y'' + p(t)y' + q(t)y = 0, (1) whose coefficients p
and q are continuous on some open interval I. Choose some point t0
in I. Let y1 be the solution of equation (1) that also satisfies
the initial conditions y(t0) = 1, y'(t0) = 0, and let y2 be the
solution of equation (1) that satisfies the initial conditions
y(t0) = 0, y'(t0) = 1. Then y1 and y2 form a fundamental set...
3. (30pt) Suppose that E(Y) = 1, E(Y2) = 2, E(Y3) = 3, V(Y1) = 6,...
3. (30pt) Suppose that E(Y) = 1, E(Y2) = 2, E(Y3) = 3, V(Y1) = 6, V(Y2) = 7,V (Y3) = 8, Cov(Yı, Y2) = 0, Cov(Yı, Y3) = -4 and 10 1 2 3 Cov(Y2, Y3) = 5. Also define a = 20 and A = 4 5 6 30/ ( 7 8 9 (a) (10pt) Find the expected value and variance covariance matrix of Y, where Y = Y2 (b) (10pt) Compute Eſa'Y) and E(AY). (c) (10pt) Compute...
linear algebra 1. Determine whether the given set, along with the specified operations of addition and scalar multiplica...
linear algebra
1. Determine whether the given set, along with the specified operations of addition and scalar multiplication, is a vector space (over R). If it is not, list all of the axioms that fail to hold. a The set of all vectors in R2 of the form , with the usual vector addition and scalar multiplication b) R2 with the usual scalar multiplication but addition defined by 31+21 y1 y2 c) The set of all positive real numbers, with...
3. Use reduction of order to find the fundamental set of solutions and write the general...
3. Use reduction of order to find the fundamental set of solutions and write the general solution, given that y1 is a solution xy" – (4x + 1)y' + (4x + 2)y = 0, Y1 = e2x
a) Assume that y1(c) t and y2)te are solutions of the differential equation t2y_ t(t + 2))" + t(t + 2)y-0, t > 0 Do y1(t) and y2() form a fundamental set of solutions of the O.D.E.? C) State the general solution for this O.D.E.
a) Assume that y1(c) t and y2)te are solutions of the differential equation t2y_ t(t + 2))" + t(t + 2)y-0, t > 0 Do y1(t) and y2() form a fundamental set of solutions of...
(1 point) Which of the following vectors forms a fundamental set of solutions to the system of differential equations X') X? 0 6 0 21 6t 0 14t 0 0 6t. 6t
7. If y, and y2 are a fundamental set of solutions of t2y"-2/ + (3 + t)y = 0 and if won,n)(2) = 4, find the value of W(vi.v2)(3).
The vectors 3 X3 =|-6|+t|4 X2 х, =|-2|+ t 12 are solutions of a system X' = AX Determine whether the vectors form a fundamental set of solutions.
2. [5pts] Given that y 1, e are solutions to the homogeneous version of the nonhomogeneous DE below, verify that they form a fundamental set of solutions. Then, use variation of parameters to find the general solution y(t)
1. Consider a set of vectors S = {X1, X2, X3 } in which X1 = (1,0,0), X2 = (a, 1, -a), X3 = (1, 2, 3a +1) Determine the value (or values) of a for which the set Sabove is linearly independent (LI). 2. Consider a set of vectors T = {y1, y2.ya} in which yı = (1,2,0), y2 = (1, m,5), and y3 = (0,4, n) Determine a condition on m and n such that the set T...
Consider the differential
equation, L[y] = y'' + p(t)y' + q(t)y = 0, (1) whose coefficients p
and q are continuous on some open interval I. Choose some point t0
in I. Let y1 be the solution of equation (1) that also satisfies
the initial conditions y(t0) = 1, y'(t0) = 0, and let y2 be the
solution of equation (1) that satisfies the initial conditions
y(t0) = 0, y'(t0) = 1. Then y1 and y2 form a fundamental set...
3. (30pt) Suppose that E(Y) = 1, E(Y2) = 2, E(Y3) = 3, V(Y1) = 6, V(Y2) = 7,V (Y3) = 8, Cov(Yı, Y2) = 0, Cov(Yı, Y3) = -4 and 10 1 2 3 Cov(Y2, Y3) = 5. Also define a = 20 and A = 4 5 6 30/ ( 7 8 9 (a) (10pt) Find the expected value and variance covariance matrix of Y, where Y = Y2 (b) (10pt) Compute Eſa'Y) and E(AY). (c) (10pt) Compute...
linear algebra
1. Determine whether the given set, along with the specified operations of addition and scalar multiplication, is a vector space (over R). If it is not, list all of the axioms that fail to hold. a The set of all vectors in R2 of the form , with the usual vector addition and scalar multiplication b) R2 with the usual scalar multiplication but addition defined by 31+21 y1 y2 c) The set of all positive real numbers, with...
3. Use reduction of order to find the fundamental set of solutions and write the general solution, given that y1 is a solution xy" – (4x + 1)y' + (4x + 2)y = 0, Y1 = e2x
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