Math, asked by anjeshrairbj, 1 month ago

solve fast and please tell the solution.

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Answered by anasnakhuda788

1

a^2 +b^2+c^2+2ab+2bc+2ca+a^2+b^2+c^2-2ab-2bc-2ca

=2a^2+2b^2+2c^2.

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