Question

Solve (8- -1 9 -1 ) -1 /(4 -1 -9 -1 ) -1 All the -1 here are exponents

Answer 1

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Answer 2

Answer:

Answer = 10.

Step-by-step explanation:

$( {8}^{ - 1} - {9}^{ - 1} ) ^{ - 1} \div ({4}^{ - 1} - {9}^{ - 1} ) ^{ - 1}$

$( \frac{1}{8} - \frac{1}{9} ) ^{ - 1} \div ( \frac{1}{4} - \frac{1}{9})^{ - 1}$

$( \frac{9 - 8}{72} ) ^{ - 1} \div ( \frac{9 - 4}{36} ) ^{ - 1}$

$( \frac{1}{72}) ^{ - 1} \div ( \frac{5}{36}) ^{ - 1}$

$\frac{72}{1} \div \frac{36}{5}$

$\frac{72}{1} \times \frac{5}{36}$

$\frac{10}{1} = 10$