Question: Obtenci n d e vectores t a n g e n t e s y longitudes E n los ejercicios 1 a 8 , obtenga

Obtencinde vectores tangentesy longitudes En los ejercicios 1a8, obtenga el vector tangente unitario ala curva. Tambin, calcule la longitud dela parte indicada dela curva. r(t)=(tcost)i+(tsent)j+(2232)t32k,0t
r(t)=(tsent+cost)i+(tcost-sent)j,22t2
Obtenci n d e vectores t a n g e n t e s y

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