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Q. Let f(x)=10-|x-10| AAxin[-9,9] If M a...

Q. Let `f(x)=10-|x-10|` `AA`x`in[-9,9]` If M and m be the maximum and minimum value of 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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