If A−1=⎡⎢⎣3−11−156−55−22⎤⎥⎦ and B=⎡⎢⎣12−2−1300−21⎤⎥⎦, find (AB)−1.
Question 84 (f)
Simplify and express each of the following in exponential form. (515÷510)×55