If a = 7, b = 5 and c = 3, then the value of a^{2}+b^{2}+c^{2}-ab-bc-ca is:
[A] 0
[B] 8
[C] -12
[D] 12

Advertisement

Kindly help us to keep GKToday updated and error free. Use this form to report error or outdated information in questions. We shall rectify asap...