Question

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Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

(1) (81/49)^-3/2 = (49/81)^3/2

                        = (√49/√81)^3

                        = (7/9)^3

                        = 343/729

(2) (32/243)^-4/5 = (243/32)^4/5

                            = [(243^1/5)/(32^1/5)]^4

                            = (3/2)^4

                            = 81/16

(3) [(3^4)]^1/4 = 3

(4) [(3^1/3)]^4 = [(3^4)]^1/3

                     = (81)^1/3

                     = ∛81