Q. Select all the expressions that are equivalent to (71)−1.Multi-select Choices:(A) 71(B) 70(C) 7−11(D) 7−1
Simplify Exponent: Simplify the expression (71)−1. When an exponent is raised to another exponent, we multiply the exponents. Since 71 is simply 7, we have: (71)−1=71⋅−1=7−1
Compare to Choices: Compare the simplified expression to the choices.We have determined that 71)−1isequivalentto$7−1. Now we need to see which of the choices are equivalent to 7−1.(A) 71 is the same as 7−1 because a negative exponent indicates the reciprocal of the base raised to the positive exponent.(B) 70 is not equivalent to 7−1 because any non-zero number raised to the power of 0 is 1.(C) 7−11 is equivalent to 7 because the negative exponent in the denominator moves the base to the numerator and makes the exponent positive.(D) 7−1 is clearly equivalent to 7−1 by definition.
Select Correct Expressions: Select all the correct expressions.From our comparison in Step 2, we can see that the expressions equivalent to (71)−1 are:(A) 71(D) 7−1Choices (B) and (C) are not equivalent to (71)−1.
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