hasil dari [tex](49 { }^{ - 2} ) \frac{3}{4} [/tex]

(49^-2)^3/4
=49^-2×3/4
=49^-6/4
=49^-3/2
=1/49^3/2
=1/(7^2)^3/2
=1/7^2×3/2
=1/7^6/2
=1/7^3
=1/434

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