For all real numbers a and b, 2a • b = a2 + b2
True Or False ! Explain
2 answers:
This is true only if one of a or b is negative
(a-b)^2 is 0
a^2+b^2-2ab=0
a^2+b^2=2ab
(A-b)^2 is 0
if a-b=0
This may be equal with this formula of
(a-b)^2 = a^2 -2ab +b^2
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