1.

The value of (1+Delta)(1-Delta) is

Answer»

0
-1
1
None of these

Solution :We have,`(1+Delta)(1-grad)F(X)`
`=(1+Delta){(1-grad)f(x)}`
`=(1+Delta)[f(x)-{f(x)-f(x-h))]`
`=(1+Delta)f(x-h)=Ef(x-h)`
`[because (E=1+Delta)]`
`=f(x)=1*f(x)`
THUS, `(1+Delta ) (1-grad)f(x)=1*f(x),`for any function `f (x).
`therefore (1+Delta)(1+grad)=1`


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