Question: Find r ( t ) , r ( t ) , and r ( t ) r ( t ) . r ( t )

Find
r(t),
r(t),
and
r(t) r(t).
r(t)=6 cos(t)i +7 sin(t)j
(a)
r(t)
(b)
r(t)
(c)
r(t) r(t)

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