([" ii ")((5)/(8))^(-7)times((8)/(5))^(-4)]

Evaluate {((1)/(3))^(-1)-((1)/(4))^(-1)}^(-1) (ii) ((5)/(8))^(-7)xx((8)/(5))^(-4)

Find the value of "x" for which ((5)/(8))^(-2)times((5)/(8))^(-4)=((5)/(8))^(3x+3)

Simplify ( i ) (((1)/(3))^(-2)-((1)/(2))^(-3)}-:((1)/(4))^(-2)*( ii) ((5)/(8))^(-7)xx((8)/(5))^(-5)

Evaluate: (i) ((2)/(3))^(3) xx ((2)/(3)) ^(2)" "(ii)((4)/(7))^(7)xx ((4)/(7))^(-3)" "(iii) ((3)/(2))^(-3) " "(iv) ((8)/(5))^(-3) xx((8)/(5))^(2)

Evaluate: (i) (-3)/(5)xx(10)/(7)" "(ii) ((-5)/(8))^(-1)" "(iii) (-6)^(-1)

Evaluate {(1/3)^(-1) -(1/4)^(-1)}^-1 (ii) (5/8)^(-7) xx (8/5)^(-4)