/sci/ - Science & Math

Anonymous Sat Feb 8 14:54:07 2020 No.11369731 [View]
File: 2 KB, 488x67, 2020-02-08-043134_488x67_scrot.png [View same] [iqdb] [saucenao] [google]

sorry to shit it up with an elementary algebra question, but can someone help me prove this?

I penciled it out by breaking the summation down into terms in a sequence, x_1^2y_1^2 +... + x_1^2y_n^2, for each sequence in each summation, and it seems like it's true, but that's a bit insufficient and a nice elegant proof would be 11/10

also asked here, where it'd probably better be answered.
>>11369714

TIA

>>	Anonymous Sat Feb 8 14:48:11 2020 No.11369714 [View] File: 2 KB, 488x67, 2020-02-08-043134_488x67_scrot.png [View same] [iqdb] [saucenao] [google] >>11369306 >>11369087 >>11365784 ok, i just need the last equality proven, pic related PLEASE help

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/sci/ - Science & Math

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