A) 1
B) 0
C) ?1
D) None of these
Correct Answer: C
Solution :
Putting \[x=1\] in \[{{({{x}^{2}}-x-1)}^{99}}\] we get the sum of the coefficient of \[{{({{x}^{2}}-x-1)}^{99}}\] = \[{{({{1}^{2}}-1-1)}^{99}}=-1\].
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