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f(x) is an even periodic function with period 10. In `[0,5] f (x)= {{:(2x, 0 lex lt2),(3x ^(2)-8, 2 le x lt 4),(10x, 4 le x le 5):}` Then :

A

`f (-4) =40`

B

`(f(-13) -f(11))/(f (13) +f(-11))=17/21`

C

`f (5)` is not defined

D

Range of `f (x)` is `[0,50]`

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