Evalute `((81)/(49))^(-3//2)`

Evaluate : ((16)/(81))^(-3//4)xx((49/9)^(3//2)/((343)/(216))^(2//3))

Evalute 21C_3

Evalute: 3^(-2)

Simplify (i) ((81)/(49))^(-(3)/(2)) (ii) (14641)^(0.25) (iii) ((32)/(243))^(-(4)/(5)) (iv) ((7776)/(243))^(-(3)/(5))

Evalute (i) (125)^((1)/(3)) (ii) (64)^((1)/(6)) (iii) (25)^((3)/(2)) (iv) (81) ^((3)/(4)) (v) (64)^(-(1)/(2)) (vi) (8)^(-(1)/(3))

Evalute : int((x-4)e^x)/(x-2)^3dx

Evalute: (2+sqrt(3))^(7)+(2-sqrt(3))^(7)

The value of (1)/(81^(n))-(10)/(81^(n)).""^(2n)C_(2)-(10^(3))/(81^(n)).""^(2n)C_(3)+…+((10)^(2n))/(81^(n)) is