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[" A unit vector in the direction of res...

[" A unit vector in the direction of resultant vector of "],[vec A=-2hat i+3hat j+hat k" and "vec B=hat i+2hat j-4hat k" is "],[qquad [(hat i+2hat j-4hat k)/(sqrt(35))],[(-3hat i+hat j+5hat k)/(sqrt(35))]]

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