I have a differential equation as follows:
x(t)^2+cos(x(t))+diff(x(t), t)+diff(x(t), t, t) = 100
x(0)=2, D(x)(0) = 3;
After using "dsolve" to solve this equation, the solution x(t) is obtained.
How can we obtain the following function?
g(k) = 0∫kx2(t)dt
How can we plot the function g(k...