# Out of the four options, only one is correct. Write the correct answer.The value of (7–1 – 8–1)–1 – (3–1 – 4–1)–1 isA. 44B. 56C. 68D. 12

By laws of exponent,

By using,

Again using,

= 56 – 12= 44

Hence, the value of (7–1 – 8–1)–1 – (3–1 – 4–1)–1 is 44.

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