simplify each of the removing radical signs and negative indices wherever they occur (i) under root 4 rays power _3/4
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(2)^-7 × (2)^(-5/2)
=2^(-7-5/2)
=2^(-19/2)
=1/2^(19/2)
=2^(-7-5/2)
=2^(-19/2)
=1/2^(19/2)
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