The middle term in the expansion of (a + b)^n is:
Correct answer: B. even
- A. odd
- B. even
- C. prime
- D. none of these
Explanation
The middle term in the expansion of (a + b)^n, where n is an even number, is an even term.The general term in the expansion is given by:(n choose r) a^(n-r) b^rAs the middle term is 1, so n is even.
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Sequences describe ordered terms formed by a pattern, while series represent the sum of those terms. Questions cover arithmetic and geometric sequences, their nth terms, common difference or ratio, finite sums, and applications, with the sequence itself kept distinct from the corresponding series.
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