Question

(9/8)⁰-(1/8)‐²×1/72​

Answer 1

$( \frac{9}{8} {)}^{0} - ( \frac{1}{8} ) {}^{ - 2} \times \frac{1}{72} = 1 - {8}^{2} \times \frac{1}{72} = \\ 1 - 64 \times \frac{1}{72} = - 63 \times \frac{1}{72} = - \frac{63}{72} = \\ \frac{7}{8}$

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