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Let f (x)=10-|x-10|AA x inj [-9,9], if M...

Let `f (x)=10-|x-10|AA x inj [-9,9],` if M and m be the maximum and minimum value opf `f (x)` respectively, then :

A

`M +m =0`

B

`2M +m =-9`

C

`2M+m =7`

D

`M =m =7`

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A
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