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Question
The total number of terms in the expansion of (x + a)51 – (x – a)51 after simplification is ______.
Options
102
25
26
None of these
Solution
The total number of terms in the expansion of (x + a)51 – (x – a)51 after simplification is 26.
Explanation:
Since the total number of terms are 52 of which 26 terms get cancelled.
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