2 years ago

If the magnitude of vector u is ||u||=7.81 and its angle of direction is 129.81°, which graph represents vector -u?

Mathematics

1 answer:

Triss [41]2 years ago

4 0

Answer:

see attached

Step-by-step explanation:

The vector -u will be in the opposite direction of u. The magnitude is 7.81, but the angle is 129.81° -180° = -50.19°. A graph of it is attached.

_____

The (x, y) components are ...

7.81(cos(-50.19°), sin(-50.19°)) ≈ (-5.00, -6.00)

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