Question: Find the unit normal vectors n and -nto the surface S defined byr(u,v)=4uvi+5vj+euk(Use symbolic notation and fractions where needed. Give your answers in the vector

Find the unit normal vectors n and -nto the surface S defined byr(u,v)=4uvi+5vj+euk(Use symbolic notation and fractions where needed. Give your answers in the vector form.)

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