1.

The value of((Delta^(2))/(E))x^(3)at h=1is

Answer»

8x
6x
`5X^(2)`
`6x^(2)`

SOLUTION :`((Delta_(2))/E)x^(3)=(((E-1)^(2))/(E))x^(3)`
`=((E^(2)-2E+1)/(E))x^(3)`
`=E(x^(3))-2x^(3)+E^(-1)(x^(3))`
`=(x+1)^(3)-2x^(3)+(x-1)^(3)`
`=x^(3)+1+3x^(2)+3x-2x^(3)+x^(3)-1-3x^(2)+3x`
`=6x`


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