Chapter 2: Q3RP (page 81)
Answer Problems 1-12without referring back to the text. Fill in the blanks or answer true or false.
The linear DE, , where k1and k2are nonzero constants, always possesses a constant solution.
Short Answer
True.
Chapter 2: Q3RP (page 81)
Answer Problems 1-12without referring back to the text. Fill in the blanks or answer true or false.
The linear DE, , where k1and k2are nonzero constants, always possesses a constant solution.
True.
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Get started for free(a) Identify the nullclines (see Problem 17) in Problems 1,3,and 4. With a colored pencil, circle any lineal elements in Figures 2.1.12, 2.1.14, and 2.1.15 that you think maybe a lineal element at a point on a nullcline.
(b) What are the nullclines of an autonomous first-order DE?
Each DE in Problems is homogeneous. In Problems solve the given differential equation by using an appropriate substitution.
Determine whether the given differential equation is exact. If it is exact, solve it.
Determine whether the given differential equation is exact. If it is exact, solve it.
Question: (a) Find an implicit solution of the IVP
(b) Use part (a) to find an explicit solutionof the IVP.
(c) Consider your answer to part (b) as a function only. Use a graphing utility or a CAS to graph this function, and then use the graph to estimate its domain.
(d) With the aid of a root-finding application of a CAS, determine the approximate largest interval I of definition of the solution in part (b). Use a graphing utility or a CAS to graph the solution curve for the IVP on this interval.
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