please answer this and explain if a = 6 and b = 7 as a determination, so that means they can be inveres or they have to be only = 0 or 1 ?!

function

= MDETERW(array)

thank you

21= =D 4. Using Excel, first determine if the matrices below can actually be inverted. Then, if an inverse can be found multiply the inverse by the original matrix and show the product fi 0 1 0 52 - 2 -2 1 1 0 [a] -4 1 [b] -2 0 2 1 1 6 -1 -1 1 0