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Question
Write the total number of terms in the expansion of \[\left( x + a \right)^{100} + \left( x - a \right)^{100}\] .
Solution
The total number of terms are 101 of which 50 terms get cancelled.
Hence, the total number of terms in the expansion of
\[\left( x + a \right)^{100} + \left( x - a \right)^{100}\] is 51.
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