Hello, MMCS!
Did you have your calculator in radian mode?
The position vector of a body, at time t, relative to an origin is given by the vector:
Find its x,y,z co-ordinates when t = 1.1
For this i assumed 8sin(4t) represented the x co-ordinate and so on for the y and z. But simply subbing in 1.1 doesnt work
Thanks