Question

.. For a=-12, b = 4, C = -25, find whether (a) a and b are closed under addition,

please solve this que fast​

Answer 1

Answer:

$a) \: a \: = - 12 \: \: \c{} \: \: \: b \: = 4 \\ \\ a + b = - 12 + 4 \\ = - 8$

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