A) \[ab=1\]
B) \[\frac{a}{b}=1\]
C) \[a+b=1\]
D) \[a-d=1\]
Correct Answer: A
Solution :
Theth term in the expansion of is Letbe contained inth term in the expansion of For coefficient ofwe put Coefficient ofin the expansion of Similarly, coefficient ofin the expansion of According to the question,You need to login to perform this action.
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