Find the tangent wector, vec$(r)(e)$ to the space carve described by the given vector function.

vec$(F)(t)=\sqrt[\phantom{2}]{t}$vec$(i)-sin(lnt)vec(j)2$ivec$(k)$

Select one:

a$.$ vec$(u)(-1),\frac{v^2}{2n}i2j2k$

b$.$ vec$(r)(e)=\frac{1}{2}$vec$(v)vec(i)2$vec$(k)$

$k(x),v12k$

a vec$(r)(e)=0$

k None of the above