Power Series in Differential Equations

Power Series in Differential Equations

Assessment

Interactive Video

Mathematics

11th - 12th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial explains how to solve a second-order differential equation using the power series method. It covers the differentiation of power series to find y' and y'', substitution into the differential equation, index shifting, and matching. The tutorial also derives recursion formulas for coefficients and generates solutions using these formulas and arbitrary constants.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What method is introduced for solving the second-order differential equation?

Separation of Variables

Power Series Method

Laplace Transform

Fourier Series

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the general form of a power series used in the solution?

d_n * t^n

c_n * z^n

b_n * y^n

a_n * x^n

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in differentiating the power series?

Integrate the series

Multiply by a constant

Differentiate term by term

Add a constant term

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the original differential equation rewritten?

In terms of integrals

In terms of power series

In terms of matrices

In terms of polynomials

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is adjusted to match in the power series?

Constants

Variables

Indices and powers of x

Coefficients

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is used to solve for the coefficients in the power series?

Elimination

Substitution

Recursion

Integration

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the solutions based on in the final step?

Numerical approximation

Graphical analysis

Exact values of coefficients

Arbitrary choices for initial coefficients