SOLUTION: prove that [1/2(a+b)]^2<equal to 1/2(a^2+b^2)for all a,b belong real no show that equality hold if and only if a=b

Algebra ->  Real-numbers -> SOLUTION: prove that [1/2(a+b)]^2<equal to 1/2(a^2+b^2)for all a,b belong real no show that equality hold if and only if a=b       Log On