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= 3/27 x a⁹⁻¹¹b¹¹⁻¹³
= 1 / 9 x a⁻²b⁻²
= 1 / 9 x 1 / a²b²
= 1/ 9a²b²
Jadi jawaban yang benar adalah D. 1 / 9a²b².
Semoga membantu.. ^_^
Jawaban = D. 1 / 9a²b².