suppose R={1,3,5,7,9,11,13,15,17} and D={3,6,9,12,15,18,21,24,27}, what is R◠D?

The notation R◠D represents the set difference between R and D.

To find R◠D, we need to remove any elements from R that are also present in D.

Looking at the given sets R={1,3,5,7,9,11,13,15,17} and D={3,6,9,12,15,18,21,24,27}, we can see that the common elements are 3 and 9.

After removing these elements from R, the set R◠D is {1, 5, 7, 11, 13, 17}.

what are all the subsets of {-8,4}?

The subsets of the set {-8, 4} are:

1. {} (the empty set)
2. {-8}
3. {4}
4. {-8, 4}

Therefore, the subsets of the set {-8, 4} are: {}, {-8}, {4}, {-8, 4}.

To find the set difference between R and D (R ◠ D), we need to remove the elements of D from R.

Given:
R = {1, 3, 5, 7, 9, 11, 13, 15, 17}
D = {3, 6, 9, 12, 15, 18, 21, 24, 27}

To compute R ◠ D, we will remove the common elements from R and D.

Step 1: Compare the elements of R and D:
R = {1, 3, 5, 7, 9, 11, 13, 15, 17}
D = {3, 6, 9, 12, 15, 18, 21, 24, 27}

Step 2: Remove the common elements from R:
R ◠ D = {1, 5, 7, 11, 13, 17}

Therefore, R ◠ D = {1, 5, 7, 11, 13, 17}.

To find the set difference R◠D, we need to remove the elements that are common between set R and set D.

Step 1: Identify the common elements
To find the common elements between two sets, we can compare each element in both sets and see which ones are present in both sets.

Looking at the given sets R={1,3,5,7,9,11,13,15,17} and D={3,6,9,12,15,18,21,24,27}, we can see that the common elements are 3 and 9.

Step 2: Remove the common elements
Now that we have identified the common elements, we need to remove them from set R.

Removing the common elements {3, 9} from set R={1,3,5,7,9,11,13,15,17}, we get a new set without the common elements: R◠D = {1, 5, 7, 11, 13, 15, 17}.

So, the set difference R◠D is {1, 5, 7, 11, 13, 15, 17}.