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given a vector is equal to a vector + b vector and R is equal to a is equal to be the angle between a vector and b vector is |
Answer» <html><body><p>tion:The angle α which the <a href="https://interviewquestions.tuteehub.com/tag/resultant-1187362" style="font-weight:bold;" target="_blank" title="Click to know more about RESULTANT">RESULTANT</a> R makes with A is <a href="https://interviewquestions.tuteehub.com/tag/given-473447" style="font-weight:bold;" target="_blank" title="Click to know more about GIVEN">GIVEN</a> bytanα= A+BcosθBsinθ or <a href="https://interviewquestions.tuteehub.com/tag/cos-935872" style="font-weight:bold;" target="_blank" title="Click to know more about COS">COS</a>(θ/<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)sin(θ/2) = A+Bcosθ2Bsin(θ/2)cos(θ/2) which gives A+Bcosθ=2Bcos 2 ( 2θ )or A+B[<a href="https://interviewquestions.tuteehub.com/tag/2cos-300647" style="font-weight:bold;" target="_blank" title="Click to know more about 2COS">2COS</a> 2 ( 2θ )−1]=2Bcos 2 ( 2θ )A=B.thank you for question</p></body></html> | |