I'm trying to derive the inner product using the polarization identity but I'm getting stuck. This is how far I get

But I want to end up with . I assume I've gone wrong somewhere???

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- May 20th 2010, 12:42 PMmarkwolfson16900Polarization Identity
I'm trying to derive the inner product using the polarization identity but I'm getting stuck. This is how far I get

But I want to end up with . I assume I've gone wrong somewhere??? - May 20th 2010, 12:49 PMOpalg
- May 20th 2010, 01:30 PMmarkwolfson16900
Ah of course. Thank you.