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begin mathsize 12px style If space straight A space is space the space solution space set space of space 8 straight x minus 1 space greater than space 5 straight x plus 2 comma space straight x element of straight N space and space straight B space is space the space solution space set space of
7 straight x minus 2 space greater or equal than space 3 left parenthesis straight x plus 6 right parenthesis comma space straight x element of straight N comma space find space straight A space intersection space straight B end style

Asked by Topperlearning User 8th September 2017, 9:27 AM
Answered by Expert
Answer:

begin mathsize 12px style 8 straight x minus 1 space greater than space 5 straight x plus 2 comma space straight x element of straight N
8 straight x minus 5 straight x space greater than space 2 plus 1
3 straight x space greater than space 3
straight x space greater than space 1
straight A space equals space open curly brackets 2 comma 3 comma 4.... close curly brackets
7 straight x minus 2 space greater or equal than space 3 open parentheses straight x plus 6 close parentheses comma space space straight x element of straight N
7 straight x minus 2 space greater or equal than space 3 straight x plus 18
7 straight x minus 4 straight x space greater or equal than space 18 plus 2
4 straight x space greater or equal than space 20
straight x greater or equal than 5
straight B equals open curly brackets 5 comma 6 comma 7... close curly brackets
straight A space intersection space straight B equals open curly brackets 5 comma 6 comma 7.... close curly brackets equals straight B
end style

 

Answered by Expert 8th September 2017, 11:27 AM
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