Find the first four terms of the binomial series for the given function.
-2/3
A. 1 - 
x + 
x2 - 
x3
B. 1 + 
x + 
x2 + 
x3
C. 1 - 
x + 
x2 - 
x3
D. 1 + 
x + 
x2 + 
x3
Answer: B
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A. 
B. 
C. 
D. 
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