Evaluate (if possible) the vector-valued function at each given value of t. (a) r(2) (b) r(-3) (c) r(t - 4) (d) r(1 + t) -r(1)

Evaluate (if possible) the vector-valued function at each given value of t.

(a) r(2) 

(b) r(-3)

(c) r(t - 4)

(d) r(1 + Δt) -r(1)

1 r(t) = In ti + + j j + 3tk