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Step 1 We are given the following homogenous differential equation and pair of solutions on the given interval. x²y" 7xy' + 15y = 0; x³, x5, (0, ∞) We are asked to verify that the solutions are linearly independent. That is, there do not exist constants c₁ and C₂, not both zero, such that c₁x³ + ₂x³ = 0. While this may be clear for these solutions that are different powers of x, we have a formal test to verify the linear independence. Recall the definition of the Wronskian for the case of two functions f₁ and f2, each of which have a first derivative. f₁ f₂ |f₁ f₂ By Theorem 4.1.3, if W(f₁, f₂) = 0 for every x in the interval of the solution, then solutions are linearly independent. Let f₁(x) = x³ and f₂(x) = x5. Complete the Wronskian for these functions. x5 W(f₁, f₂) = w(x³, x5)= 13x2

Step 1 We are given the following homogenous differential equation and pair of solutions on the given interval. x²y" 7xy' + 15y = 0; x³, x5, (0, ∞) We are asked to verify that the solutions are linearly independent. That is, there do not exist constants c₁ and C₂, not both zero, such that c₁x³ + ₂x³ = 0. While this may be clear for these solutions that are different powers of x, we have a formal test to verify the linear independence. Recall the definition of the Wronskian for the case of two functions f₁ and f2, each of which have a first derivative. f₁ f₂ |f₁ f₂ By Theorem 4.1.3, if W(f₁, f₂) = 0 for every x in the interval of the solution, then solutions are linearly independent. Let f₁(x) = x³ and f₂(x) = x5. Complete the Wronskian for these functions. x5 W(f₁, f₂) = w(x³, x5)= 13x2

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Step 1 We are given the following homogenous differential equation and pair of solutions on the given interval. x²y" 7xy' + 15y = 0; x³, x5, (0, ∞) We are asked to verify that the solutions are linearly independent. That is, there do not exist constants c₁ and C₂, not both zero, such that c₁x³ + ₂x³ = 0. While this may be clear for these solutions that are different powers of x, we have a formal test to verify the linear independence. Recall the definition of the Wronskian for the case of two functions f₁ and f2, each of which have a first derivative. f₁ f₂ |f₁ f₂ By Theorem 4.1.3, if W(f₁, f₂) = 0 for every x in the interval of the solution, then solutions are linearly independent. Let f₁(x) = x³ and f₂(x) = x5. Complete the Wronskian for these functions. x5 W(f₁, f₂) = w(x³, x5)= 13x2
Transcribed Image Text:Step 1 We are given the following homogenous differential equation and pair of solutions on the given interval. x²y" 7xy' + 15y = 0; x³, x5, (0, ∞) We are asked to verify that the solutions are linearly independent. That is, there do not exist constants c₁ and C₂, not both zero, such that c₁x³ + ₂x³ = 0. While this may be clear for these solutions that are different powers of x, we have a formal test to verify the linear independence. Recall the definition of the Wronskian for the case of two functions f₁ and f2, each of which have a first derivative. f₁ f₂ |f₁ f₂ By Theorem 4.1.3, if W(f₁, f₂) = 0 for every x in the interval of the solution, then solutions are linearly independent. Let f₁(x) = x³ and f₂(x) = x5. Complete the Wronskian for these functions. x5 W(f₁, f₂) = w(x³, x5)= 13x2
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