Describe the translation 7 units to the left, 12 units up using a vector.

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24-04-2017
Mathematics

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Describe the translation 7 units to the left, 12 units up using a vector.

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irspow irspow · Answer 1 · 2017-04-24T01:31:27+02:00

irspow irspow

24-04-2017

The magnitude of the vector is √(7^2+12^2)=√(49+144)=√193

The direction is α=arctan(y/x)=arctan(12/-7)≈-59.74 however this is relative to the negative x-axis so we add 180° to get the standard angle...180-59.74=120.26°

So the vector is √193 @ 120.26°

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