If the cosine formula gives me 0, it means that the vector are perpendicular. But how do I know if it's 90° or -90° ?
Md Ariful Islam
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,
এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
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পিজিটি(মেডিসিন)
The angle between 2 vectors is always between 0° and 180°, so the angle is 90°.
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