The position of a particle is given by the expression x$=4\mathrm{.}00$ cos$(3\mathrm{.}00$pit $+$ pi$)$

m$.$ Determine

a$)$ the frequency and

b$)$ periodofthemotion,

c$)$ the amplitude of the motion,

d$)$ thephaseconstant,and

e$)$ the position of the particle at t $=0\mathrm{.}250$ s$.$