Question

if two vectors a and b acting at a point such that the angle between the vector is 90 degree find the magnitude of resultant vector

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Answer 1

Answer:

If you subtract 180 degrees from your answer of 45 degrees, you get –135 degrees, which is your actual angle measured from the positive x-axis in the clockwise direction. Alternatively, you could reason that since the components of the vector are both negative, you must be between 180 degrees and 270 degrees.

Explanation:

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