
Concept explainers
To determine which expression is equivalent to

Answer to Problem 8CST
F.
Explanation of Solution
Given information:
Expression
Formula Used: Negative Exponent Rule and Zero Exponent Rule
Calculation:
As the exponent of 3 here is negative, apply the negative exponent rule which says that when exponent is negative, the numerator & denominators are reversed to change the exponent to positive.
Since the exponent of x is zero, apply the zero exponent rule here which says any number with the exponent 0 is evaluated as 1. This gives us-
And finally,
Hence F is correct.
Conclusion-
F.
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