C-04-Q053mediumsingle_mcq(−3)−2=?(-3)^{-2} = ?(−3)−2=?a−9-9−9b999c19\dfrac{1}{9}91d−19-\dfrac{1}{9}−91ব্যাখ্যাThe negative exponent gives the reciprocal, and the even power makes the result positive: (−3)−2=1(−3)2=19(-3)^{-2} = \dfrac{1}{(-3)^2} = \dfrac{1}{9}(−3)−2=(−3)21=91.