The derivative of digital function is defined in terms of difference. – McqOptions

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1.	The derivative of digital function is defined in terms of difference. Then, which of the following defines the first order derivative f/ x= ___________ of a one-dimensional function f(x)?
A.	tf(x+1)-f(x)
B.	tf(x+1)+ f(x-1)-2f(x)
C.	tAll of the mentioned depending upon the time when partial derivative will be dealt along two spatial axes
D.	tNone of the mentioned
Answer» B. tf(x+1)+ f(x-1)-2f(x)

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