Q. Which is equal to 9191?Choices:(A) 91−9(B) 919(C) (−91)−91(D) (−91)9
Understand expression: Understand the given expression 9191. The expression is a fraction with 1 in the numerator and 919 in the denominator.
Apply negative exponent rule: Apply the negative exponent rule to rewrite the expression.The negative exponent rule states that a−m=am1. Therefore, we can rewrite 9191 as 91−9.
Match with choices: Match the rewritten expression with the given choices.The expression 91−9 matches choice (A) 91−9.