If (x-1) (x + 1) =1, Find (x+1)³- 1/(x+1)3+4=?
(a) 6
(b) 27
(c) 18
(d) 9.
Sol:
If (x-1) (x + 1) =1, Find (x+1)³- 1/(x+1)3+4=?
(a) 6
(b) 27
(c) 18
(d) 9.
Sol:
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