(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The resultant R of vectors P and Q is perpendicular to P and R=P both, then the angle between P and Q is what?

Now, what is the concept behind it? Could you provide me with an image of the resultant perpendicular to two vectors so that I can understand the concept and start solving the problem?

2. Relevant equations

3. The attempt at a solution

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# The angle between P and Q?

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