# Answer to Question #26687 in Algebra for aoides

Question #26687

Prove that if both set A&B are bounded above then

i) AUB is also bounded above and

ii) sup (AUB) = max { sup(A), sup(B) }

Can anyone help me solve this problem? i understand what is the meaning of bounded above and have little understanding what sup means. Thanks

i) AUB is also bounded above and

ii) sup (AUB) = max { sup(A), sup(B) }

Can anyone help me solve this problem? i understand what is the meaning of bounded above and have little understanding what sup means. Thanks

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