Question

Evaluate the following
$({ - 7})^{ - 6} \div ({ - 7})^{ - 5} \div ( { - 7})^{ - 2}$
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Answer 1

${ - 7}^{ - 6} \div { - 7}^{ - 5} \div { - 7}^{ - 2} = - { - 7}^{ - 13}$