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| 1. |
If |vecP+vecQ|=|vecP|-|vecQ|, the the angle between the vectors vecPandvecQ |
| Answer» <html><body><p><<a href="https://interviewquestions.tuteehub.com/tag/p-588962" style="font-weight:bold;" target="_blank" title="Click to know more about P">P</a>>`0^(@)`<br/>`<a href="https://interviewquestions.tuteehub.com/tag/90-341351" style="font-weight:bold;" target="_blank" title="Click to know more about 90">90</a>^(@)`<br/>`180^(@)`<br/>`360^(@)`</p>Solution :Square on both side `180^(@)` and the resultant <a href="https://interviewquestions.tuteehub.com/tag/becomes-1994370" style="font-weight:bold;" target="_blank" title="Click to know more about BECOMES">BECOMES</a> <br/> `P^(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)+<a href="https://interviewquestions.tuteehub.com/tag/q-609558" style="font-weight:bold;" target="_blank" title="Click to know more about Q">Q</a>^(2)+2PQcostheta=P^(2)+Q^(2)-2PQ` <br/> `costheta=-1""theta=180^(@)`</body></html> | |