Question

math work ans right full ans​

Answer 1

Answer:

Step-by-step explanation:

iii 4⁻⁵*5⁻⁵

=(20)⁻⁵                   {mᵇ*nᵇ= [mn]ᵇ }

iv [2⁻⁵÷4²]*8⁻¹

=[1/2⁵*1/4²]*8⁻¹

=[1/2⁹]*8⁻¹

=1/2⁹*2⁻³

=1/2⁹*1/2³

=1/2¹²

=2⁻¹² ans