
Ashley P.
asked 02/02/23Einstein Convention for Summations and Related Operations
Could someone please explain how the step marked in blue colour in image number 2(which can be found via: https://drive(dot)google.com/drive/folders/15-PpeVh0jp4aawKJWOFwYz1w_tZz2CLj?usp=share_link) is derived from its immediate previous step?
1 Expert Answer

Luke J. answered 02/14/23
BS Mechanical Engineering with Experience Tutoring Relevant Material
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Daniel B.
02/02/23