## Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.

### See 1 Answer

*done*{{ upvoteCount }} Upvotes

*clear*{{ downvoteCount * -1 }} Downvotes

Hope this helps

Date Posted:
11 months ago

I doubt sec 4 students learn inverses in their syllabus though.

I think they do. I learned this in sec4

How else can we solve this without inverse?

We have to call C as (a b c d) and solve some simuls.

Ah right. But that would be 4 equations 4 unknowns. I think they learn 2 equations 2 unknowns only