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when toggle format what by license comment
Nov 24, 2020 at 14:49 comment added Mohammad Javanshiry @GalaxyLimits Not at all. The proof is left to the student as an exercise! ;)
Nov 24, 2020 at 14:19 comment added RendezvousRama Thank you for the great answer! in solving L/L', where did the cos(theta ') go?
Dec 20, 2019 at 15:28 history edited Mohammad Javanshiry CC BY-SA 4.0
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Dec 20, 2019 at 13:39 history edited Mohammad Javanshiry CC BY-SA 4.0
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Dec 20, 2019 at 13:32 history edited Mohammad Javanshiry CC BY-SA 4.0
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Dec 20, 2019 at 13:20 history answered Mohammad Javanshiry CC BY-SA 4.0