Now a little bit of math (we will need it when talking about LC-circuits). What is the solution of this differential equation? Remember, the solution of a differential equation is a function, not a number.
Q(t) + a² d²Q(t)/dt² = 0
If you don't know how to solve a differential equation, just go through the functions suggested below and take their second derivatives. Then check whether or not a pair of Q(t) and d²Q(t)/dt² satisfy this differential equation.
Choose all that apply.
- Q(t) = const * cos(at)
- Q(t) = const * sin(at)
- Q(t) = const * cos(t/a)
- Q(t) = const * sin(t/a)
- Q(t) = const * exp(at)
- Q(t) = const * exp(t/a)