Question

pliss help T_T
Given the vector-valued function
r(t) = 3 cos 2ti +2 sin 2tj 0 12 years ago

Answer 1

just plug value of t in r(t) and get the answer
for example: r (0) = 3 cos (2*0)i + 2 sin (2* 0) j = .......
do the same with the rest

Answer 2

then the question ask to sketch graph of r(t)