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Mathematics 14 Online
OpenStudy (anonymous):

If A = {…−6, −4, −2} and B = {1, 2, 3, …}, what is A ∩ B? {1, 2, 3, …} {…−6, −4, −2, 1, 2, 3, …} { } {…−6, −4, −2}

OpenStudy (anonymous):

Since there are no common elements in both the sets therefore its ans will a empty set i.e. {}

OpenStudy (anonymous):

A ∩ B= {}

OpenStudy (anonymous):

ok i get it.

OpenStudy (anonymous):

If C = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and D = {numbers divisible by 3 from 1 to 21}, what is C ∩ D? {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 18, 21} {3, 6, 9, 12, 15, 18, 21} {3, 6, 9} { }

hero (hero):

Hint: D = {3, 6, 9, 12, 15, 18, 21}

OpenStudy (anonymous):

ok thanks

hero (hero):

What do you mean ok thanks...I didn't give you the answer. I gave you a Hint...the set for D

hero (hero):

You still have to figure out the answer.

OpenStudy (anonymous):

that's what im doing right now

hero (hero):

You still have to find C ∩ D

hero (hero):

Okay, good.

OpenStudy (anonymous):

is it c

OpenStudy (anonymous):

you there I think its c

hero (hero):

Yes, C is correct.

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