1.

The value of ` ((Delta^(2))/(E))x^(3)` at h=1 isA. 8xB. 6xC. `5x^(2)`D. `6x^(2)`

Answer» Correct Answer - B
`((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`


Discussion

No Comment Found

Related InterviewSolutions