Asked by Sam
For all real numbers a and b, 2a • b = a^2 + b^2
Answers
Answered by
Steve
only if a=b
Answered by
Sam
is it true or false?
Answered by
Sam
is it true?
Answered by
Reiny
Sam, did you not see Steve's reply?
why not try some values?
e.g. let a = 4, b = 5
then 2ab= 2(4)(5) = 40
a^2 + b^2 = 16 + 25 = 41
so what do you think?
why not try some values?
e.g. let a = 4, b = 5
then 2ab= 2(4)(5) = 40
a^2 + b^2 = 16 + 25 = 41
so what do you think?
Answered by
Jean
Solution for the variable b
b=a
b=a
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