alaa_92
10-06-2008, 01:46 PM
ana 3ndy mas2ala meganenany ba2alha 3 ayam bas besor3a 3lshan el emta7an bokra
prove that:
(cos(A+B))^2+(cos(A+B))^2=cos2Acos2B+1
prove that:
(cos(A+B))^2+(cos(A+B))^2=cos2Acos2B+1
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مشاهدة النسخة كاملة : fe mas2ala mesh 3rfa a7elaha 5ales helppp!! alaa_92 10-06-2008, 01:46 PM ana 3ndy mas2ala meganenany ba2alha 3 ayam bas besor3a 3lshan el emta7an bokra prove that: (cos(A+B))^2+(cos(A+B))^2=cos2Acos2B+1 karim elmasry 10-06-2008, 02:33 PM de eih el mas2ala de :S:S:S::S:S |