Answer: Solve the following differential equations using

Chapter 1, Problem 21

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QUESTION:

Solve the following differential equations using classical methods and the given initial conditions: [Review]

a. \(\begin{aligned} & \frac{d^2 x}{d t^2}+2 \frac{d x}{d t}+2 x=\sin 2 t \\ & x(0)=2 ; \frac{d x}{d t}(0)=-3 \end{aligned}\)

b. \(\begin{aligned} & \frac{d^2 x}{d t^2}+2 \frac{d x}{d t}+x=5 e^{-2 t}+t \\ & x(0)=2 ; \frac{d x}{d t}(0)=1 \end{aligned}\)

c. \(\frac{d^2 x}{d t^2}+4 x=t^2\)

    \(x(0)=1 ; \frac{d x}{d t}(0)=2\)

Questions & Answers

QUESTION:

Solve the following differential equations using classical methods and the given initial conditions: [Review]

a. \(\begin{aligned} & \frac{d^2 x}{d t^2}+2 \frac{d x}{d t}+2 x=\sin 2 t \\ & x(0)=2 ; \frac{d x}{d t}(0)=-3 \end{aligned}\)

b. \(\begin{aligned} & \frac{d^2 x}{d t^2}+2 \frac{d x}{d t}+x=5 e^{-2 t}+t \\ & x(0)=2 ; \frac{d x}{d t}(0)=1 \end{aligned}\)

c. \(\frac{d^2 x}{d t^2}+4 x=t^2\)

    \(x(0)=1 ; \frac{d x}{d t}(0)=2\)

ANSWER:

Step 1 of 10

Given data:

a.

                          …… (1)

;  

b.

                       …… (2)

;

c.

                                         …… (3)

;

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