3 years ago

Q7 Q7.) Find the unit vector in the same direction as v.

2 answers:

7 0

Use Pythagorean theorem:

9i-j = sqrt (9^2 - 1^2) = sqrt(81-1) = sqrt80

now divide both terms in V by that:

u = 9/sqrt(80)i - 1/sqrt(80)j

see attached picture:

Tju [1.3M]3 years ago

6 0

|v| = sqrt(9^2+(-1)^2)=sqrt(82)

u = v/|v| = 9/sqrt(82) i - 1/sqrt(82) j

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<h3>Evaluation of functions</h3>

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Read more on functions;

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