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Quadratic Residue (Part-4) Legendre’s Symbol and its basic properties

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Mathematics

This video is about Legendre’s Symbol and its basic properties.
Link to:
Quadratic Residue (Part-1): https://youtu.be/ped6r2UFk78
Quadratic Residue(Part-2): https://youtu.be/6Q7-SB_U8EM
Quadratic Residue(Part-3): https://youtu.be/W52rVkuJUII