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Question

Difficulty Level:

Easy

MCQ

Which expression is equivalent to $4^{-2} \cdot 7^{-2}$ ?

Select all that apply :

$\frac{1}{28^{2}}$

$(7.4)^{2}$

$(7.4)^{-4}$

$\frac{7^{-2}}{4^{2}}$

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