A) 8
B) 7
C) 1
D) -1
Correct Answer: C
Solution :
Here we have \[{{(1+x-3{{x}^{2}})}^{3148}}\] Substituting \[x=1\] then sum of coefficient is given by \[{{(1+1-3)}^{3148}}\Rightarrow {{(-\text{1)}}^{\text{3}148}}\text{=1}\]You need to login to perform this action.
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