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

(sqrt((225)/(729))-sqrt((25)/(144)))+sqrt((16)/(81))=?(1)/(48)(b)(5)/(48)(c)(5)/(16) (d) None of these

(16(2)/(5)-12(1)/(15))-:3(4)/(81)=?( a) 1(9)/(19) (b) 1(9)/(13)(c)2(8)/(13) (d) 3(2)/(19) (e) None of these

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

The value of ((32)/(243))^(-4/5) is a.(4)/(9) b.(9)/(4) c.(16)/(81) d.(81)/(16)

1/3,4/9,7/(27),(10)/(81),?,(16)/(729)

-(2)/(3)-(1)/(2)((4)/(9))-(1)/(3)((8)/(27))-(1)/(4)((16)/(81))-…..oo=

-(2)/(3)-(1)/(2)((4)/(9))-(1)/(3)((8)/(27))-(1)/(4)((16)/(81))-…..oo=

[{(-1/3)^2}^(-2)]^(-1) = (a) 1/(81) (b) 1/9 (c) -1/(81) (d) -1/9

[{(-1/3)^2}^(-2)]^(-1) = (a) 1/(81) (b) 1/9 (c) -1/(81) (d) -1/9