Answer
$y^{1/4}$
Work Step by Step
$\dfrac{?}{y^{-(3/4)}}=y^{4/4}$
$?=y^{4/4}*y^{-(3/4)}=y^{4/4-3/4}$
$?=y^{1/4}$
$\dfrac{y^{1/4}}{y^{-(3/4)}}=y^{4/4}$
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