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15-08-2020
Mathematics

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Find a vector 6 unit long in the direction of A = 2i + 2j – 1k

Respuesta :

15-08-2020

Answer:

B=4i+4j-2k

Step-by-step explanation:

Lets find the length of vector A

IAI= sqrt(2²+2²+1²)=sqrt(9)=3

So B=2*A = 2(2i+2j-1k)=4i+4j-2k

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