Sonali sharma Asked a Question
October 19, 2020 10:39 pmpts 30 pts
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  • Vishal goswami
    any doubt?
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    Sonali sharma
    thank u i got
  • Sonali sharma
    thank u sir
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  • Vishal goswami Best Answer
    see attachment
    • cropped4956703588232114412.jpg
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    Vishal goswami
    it is a formula for scalar product of four vectors.