A) \[-1\]
B) \[1\]
C) \[-3\]
D) \[-7\]
Correct Answer: A
Solution :
Let \[f(x)={{(1+x-3x)}^{143}}\] Sum of the coefficient in the expansion of \[{{(1+x-3x)}^{143}}=f(1)={{(1+1-3)}^{143}}=-1\]You need to login to perform this action.
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