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jadi nya 2/3a^2 x a3 : a^4 x 1/2a^2
arinya 2/3a : a²/2
jadi 2/3a x 2/a²
sama dengan 4/a³
a. 3a/2a² = 3a^-a/2
b. 4y²× y³/2 = 4y^5/2 = 2y^5 = 1/