Question

The value of
$( {7}^{ - 1} - {8}^{ - 1} )^{ - 1} - ( {3}^{ - 1} - {4}^{ - 1} )^{ - 1}$
is










(A) 44
(B) 56
(C) 68









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Answer 1

Answer:

44

56

68

Step-by-step explanation:

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