Question

Tolong dijawab no.3 besok dikumpulin!!

Answer 1

( 3a^{6} b^{5} )^{-1}
( 81a^{9} b^{2} )     

= ( 81a^{9} b^{2} )
   ( 3a^{6} b^{5} )

= 81/3 . a^{9}-{6}
       b^{5}-{2}

= 27a^{3}
    b^{3}