# 3. a. Sketch the direction field for the system below. x ‘ = x y ‘ = y b. What happens to…

3. a. Sketch the direction field for the system below.

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3. a. Sketch the direction field for the system below. x ‘ = x y ‘ = y b. What happens to…

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*x*' = *x y*' = *y*

b. What happens to solutions of this system?

c. Find a formula for the solutions of this system.

4. Write the second-order differential equation *y” *= *y *as a system of differential equations.