{11] Let :I: m MVNlLI'IJJ. Huppnee A and B are mmetrie and that hath ITA: and 11TH: are ehiequare distribute-1- Suppl-He else that :TA: and :TE: are independent- Shaw that AB = - Hint: winging part [a], shew that A+E is muily idempntent- A+E is idempntent mmily implies AH + EA = I]- First multiply the left side nf earh term in the ahnve equatien by A tn nhtnin __.; then multiply the right Elll'l nf earh term in the ahnve equatinn by A tn nhtmn __.; what does: these twe- reeulting equatiem: say ahmit AB EA '3'