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LEt F: R->R is a differntiable function ...

LEt `F: R->R `is a differntiable function `f(x+2y) =f(x) + f(2y) +4xy` for all `x,y in R`

A

f'(1)=f'(0)+1

B

f'(1)=f'(0)-1

C

f'(0)=f'(1)+2

D

f'(0)=f'(1)-2

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