Question

Mutliplicative inverse of (1/3)to the power -2

Answer 1

Answer:

heyy mate!! here is ur answer

multiplicative inverse of 1/3^-2

= 3^2

hope it will help u :)

if it is then plz mark mine answer as the brainliest one:)

Answer 2

Answer:

Step-by-step explanation:

If|A|=124, solve ∣∣(13A)−1−120 A∗∣∣

My attempt so far comes from the definition of an inverted matrix, namely

A−1=A∗|A|

So substituting gets

∣∣(13A∗|A|)−1−120 A−1|A|∣∣

Simplifying

∣∣(172A∗)−1−5 A−1∣∣

Substituting using the inverse matrix definition again

∣∣(172A−1|A|)−1−5A−1∣∣

Using

(AB)−1=B−1⋅A−1

And I get this?

∣∣(172|A|)−1(A−1)−1−5A−1∣∣

I think I went about this the wrong way completely, but I'm not getting any new ideas for now - woud appreciate any tips or hints regarding this. Thanks.