Question: Find the tangent vector, ( 0 ) r ( 0 ) to the planar curve described by the given vector function. ( ) = +

Find the tangent vector, (0)r(0) to the planar curve described by the given vector function.
()=+1+ln()r(t)=t+1i+tln(cost)j
Select one:
a.
(0)=12+r(0)=12i+ej
b.
(0)=r(0)=i
c.
(0)=0r(0)=0
d.
(0)=+r(0)=i+ej
e.
None of the above

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