Find as unit vector in the direction of the resultant of vectors A=2i-3j+k, B=i+j+2k and C=3i-2j+4k

Answer 1

2i-3j+k + i+j+2k + 3i-2j+4k
= 6i -4j + 7k

magnitude = sqrt(36+16+49) = sqrt(101)

your unit vector is < 6/sqrt(101) , -4/sqrt(101), 7/sqrt(101) >

Answer 2

6i-2j+7k