Question: Find r(t) . u(t). Is the result a vector-valued function? Explain. r(t) = (3 cos t, 2 sin t, t - 2), u(t) = (4

Find r(t) . u(t). Is the result a vector-valued function? Explain.

r(t) = (3 cos t, 2 sin t, t - 2), u(t) 

r(t) = (3 cos t, 2 sin t, t - 2), u(t) = (4 sin t, -6 cos t, t)

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