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1MileCrash
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Homework Statement
R = { (1,2), (3,5), (2,2), (2,5) }
S = { (2,1), (5,3), (5,1), (5,5) }
Explicitly find the relation R^-1 o S^-1
Homework Equations
The Attempt at a Solution
This was on my test.
First I just wrote down the inverses:
R^-1 = { (2,1), (5,3), (2,2), (5,2) }
S^-1 = { (1,2), (3,5), (1,5), (5,5) }
I didn't know what to do because the definition we learned defines 3 other sets, and all of the exercises in my test book has those 3 other sets defined.
For example, there are usually sets A, B, and C along with the sets R and S. So I have no idea how I can apply the definition to do this.