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If x - 1 = 1 , then the value of { x4 - ( 1 / x2 ) } is x 3x2 + 5x - 3
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1 4 -
1 2 -
3 4 - 0
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Correct Option: B
| Expression = | x4 - | ||
| x2 | |||
| 3x2 + 5x - 3 | |||
Dividing numerator and denominator by x,
| Expression = |  | x3 - |  | ||
| x3 | |||||
| 3x + 5 - | |||||
| x | |||||
| Expression = | | x3 - | | ||
| x3 | |||||
| 3 | | x - | | + 5 | |
| x | |||||
| Expression = | | x - | | 3 | + 3 | | x - | | ||
| x | x | |||||||||
| 3 | | x - | | + 5 | ||||||
| x | ||||||||||
| Expression = | = | = | |||
| 3 + 5 | 8 | 2 |
