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amistre64
 one year ago
Best ResponseYou've already chosen the best response.1how long is the given vector to begin with?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1vector = L units to determine the vector of 1 unit, divide both sides by L vector/L = L/L units vector/L = 1 units

Hoa
 one year ago
Best ResponseYou've already chosen the best response.0we just have the direction and the length of the required vector

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1thats all we need, and some knowledge about what a unit vector is spose to be ....

Hoa
 one year ago
Best ResponseYou've already chosen the best response.0i have idea like: unit vector of that direction is <2, 1, 2>/sqr(2^2 +1^2+(2)^2 =<2/sqr(5,1/sqr(5),2/sqr(5)> is is right?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1thats correct :) except maybe check you length again

Hoa
 one year ago
Best ResponseYou've already chosen the best response.0and use the length 1 multiply to the unit vector to get what we need, is it right?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1ugh ... 4+1+4 = 9 so sqrt(9) = 3

Hoa
 one year ago
Best ResponseYou've already chosen the best response.0yeah, you are right, my bad. thanks a lot

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1divide all the vector parts by 3 :)
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