Given r(t)=ti+2sintj+2costk and u(t)=1/ti+2sintj+2costk, find
the following: 1. r(t) x u(t) 2. d/dt (r(t) x u(t) 3.now use
product rule for derivative of cross product of two vectors and
show same result
Solve the IVP:
u'' + 10u' + 98u = 2sin(t/2)
u(0) = 0
u'(0) = 0.03
and identify the transient and steady state portions of the
solution.
Plot the graph of the steady state solution.