Perform Subtraction in Denominator: Now, let's perform the subtraction in the denominator: (21−22)=−21.
Simplify Expression by Division: Next, we can simplify the expression by dividing the numerator by the denominator. Since dividing by a negative is the same as multiplying by its reciprocal, we have (1×((21)n−1))/(−21)=−2×((21)n−1).
Distribute −2 Across Terms: We can distribute the −2 across the terms in the parentheses to get −2×((21)n)+2.
Final Simplified Form: The expression is now simplified to −2×((21)n)+2. This is the final simplified form of the given expression.
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