(3 ^-1 × 7^2)^-1 (3/7)^2

jawab

(3⁻¹. 7²)⁻¹ . (3/7)² =

= 3¹. 7⁻². 3². 7⁻²

= 3³. 7⁻⁴

= 3³/7⁴ = 27/ 2401

(3 ^-1 × 7^2)^-1 (3/7)^2
=1/(1/3 × 7^2) (3/7)^2
=1/(49/3) (9/49)
= 3/49 × 9/49
= 3^3/7^4

semoga membantu.