`81/(sqrt(0. 04))=?( 1)210( 2)405( 3)610( 4)550`

sqrt(4sqrt(81))times(81)^(-1/4)=

sqrt((25)/(81)-(1)/(9))=?(2)/(3)( b) (4)/(9)( c) (16)/(81) (d) (25)/(81)

(1)/(4)xx sqrt ([(12.1)^(2)-(8.1)^(2)] div [(0.25)^(2)+(0.25)(19.95)]) .

Evaluate each of the following : (i){(81)^(1//5)}^(5//2)" "(ii)(3sqrt(64))^(-2)" "(iii)9^(3//2)+3xx4^(0)-((1)/(81))^(-1//2) (vi)sqrt((1)/(9))+(0.01)^(-1//2)-(27)^(4//3)" "(v)((125)/(64))^(2//3)+((256)/(625))^(-1//4)

((0.3)^(1/3)(1/27)^(1/4)(9)^(1/6)(0.81)^(2/3))/((0.9)^(2/3)(3)^(-1/2)(243)^(-1/4))=

sqrt([(12.1)^(2)-(8.1)^(2)]-:[(0.25)^(2)+(0.25)(19.95)])