A damped oscillator has a displacement x as a function of time t given by x = e-t cos(∏t). Find the time at which the displacement is a maximum, when it is a minimum, and also nd
the time when x is a point of inflection.
x = e-t cos(∏t)
The Attempt at a Solution
I've no problem differentiating the equation, its when I come to finding the value of T that I am having trouble with.
Please see the attachment.