Question

find the value of (6^-1 - 7^-1)^-1
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Answer 1

Answer:

42

Explanation:

In order to factor an integer, we need to repeatedly divide it by the ascending sequence of primes (2, 3, 5...).

The number of times that each prime divides the original integer becomes its exponent in the final result

We need to make negative exponent positive

Answer 2

Step-by-step explanation:

(6^-1 - 7^-1)^-1

=(1/(6)^1 - 1/(7)^1)^-1

=(1/6-1/7)^-1

=(7-6/42)^-1

= 1/42^-1

= (42/1)^1

= 42