Question

evaluate plz this question help.me in this question

Answer 1

Heya!!!


(4^-1 + 8^-1 ) ÷ { 1/ ( 3/2)^-3 }

= ( 1/4 + 1/8 ) ÷ { 1/(2/3)^3 }

= { ( 2+1)/8 } ÷ { 1/(8/27) }

= ( 3/8 ) ÷ ( 27/8)

= 3/8 × 8/27

= 1/9

Hence, the answer is 1/9.

Hope it helps u.

:)

Answer 2

= { 4^( -1 ) + 8^( -1 ) } ÷ 1 / { 3 / 2 }^ ( -3 )

= { ( 1 / 4 ) + ( 1 / 8 ) } ÷ [ 1 ÷ ( 3 / 2 ) ^ ( -3 ) ]

          2 + 1
= { ------------------ }  ÷ [ 1 ÷ ( 2 / 3 )^ ( 3 ) ]  [ ( a / b ) ^ ( -m ) = ( b/a )^m ]
             8

= ( 3 / 8 ) ÷ [ 1 ÷ 8 / 27 ]

= ( 3 / 8 ) ÷ ( 27 / 8 )                [ 1 ÷ m / n = n /m ]

= ( 3 / 8 ) × ( 8 / 27 )

= 1 / 9. [ ( 3 )^(-2 ) ]