Question

Let ||v||=3 then which of the following is a possible value of v?

Answer 1

Given : ||v||=3  

To Find : which of the following is a possible value of v

A. (1,4,0)

B. (-1,-2,0)

C. (3,3,3)

D. (2,-2,1)

Solution:

(1,4,0)

||v||  = √(1² + 4² + 0² )  =     √17

(-1,-2,0)

||v||  = √((-1)² + (-2)² + 0² )  =     √5  

(3,3,3)

||v||  = √(3² + 3² + 3² )  =     3√3

(2,-2,1)

||v||  = √(2² + (-2)² + 1² )  =     √9  =  3

(2,-2,1)   is a possible value of v

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Answer 2

Step-by-step explanation:

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