For the sets a = {a, b} and b = {a, b,c}, determine ax b, bx a, a2 = ax a and b2 = bxb.

Hello!

the cross product between sets is defined as:

if A = {a,b,c} and B = {1,2,3)

then

where the A took the place of the columns, and B for the files.

then if our sets are A = {a,b} and B = {a,b,c)

a) AxB

b) BxA

c) AxA

d) BxB

Hope it helps, i know that is kinda hard work with this kind of operations, i tried to make a kinda of map in the first part so you can replace the values of A and B and do the multiplications by yourself, if you have troubles don't doubt of asking.

step-by-step explanation:

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.