Question: If u ( t ) = ( : s i n ( 5 t ) , c o s ( 3 t ) , t

If u(t)=(:sin(5t),cos(3t),t:) and v(t)=(:t,cos(3t),sin(5t):), use the theorem given below to find ddt[u(t)*v(t)].
Suppose u and v are differentiable vector functions. Then ddt[u(t)*v(t)]=u'(t)*v(t)+u(t)*v'(t).
If u ( t ) = ( : s i n ( 5 t ) , c o s ( 3 t ) ,

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