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Please Solve R.D.Sharma class 12 Chapter 21  Differential Equations Exercise Revision Exercise Question 1Sub Question Maths textbook Solution.

Answers (1)

Answer:

Order-2, degree-1

Hint:

Check the highest order of derivate to find the order and check the power of derivative to find degree.

Given:

            \left ( \frac{ds}{dt} \right )^{4}+3s\left ( \frac{d^{2}s}{dt^{2}} \right )=0

Solution:

            \left ( \frac{ds}{dt} \right )^{4}+3s\left ( \frac{d^{2}s}{dt^{2}} \right )=0

               \therefore \left ( s' \right )^{4}+3s\left ( s^{n} \right )=0

                Highest order derivative =2

 \therefore            Order=2

                Degree= Power ofs"

                Degree=1

    

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