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Which of the following are true: \ (2xx3...

Which of the following are true: `\ (2xx3)!=2!xx3!`

A

`[3,7]sube(2,10)`

B

`(0,oo)sube(4,oo)`

C

`(5,7]sube[5,7)`

D

`[2,7]sube(2,9,8)`

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The correct Answer is:
A
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