What does “General term” actually mean in Binomial Theorem, and why does it matter for JEE?
the (r+1)th term is T_(r+1) = nCr·a^(n−r)·b^r.
In simple words: the (r+1)th term is T_(r+1) = nCr·a^(n−r)·b^r. Getting General term clear matters because JEE questions on Binomial Theorem usually test this idea directly, not just a formula you memorised.
Key point
General term
Common mistake
treating the general term as the rth term instead of the (r+1)th.
Memory tip
to find a specific term, set the exponent and solve for r, then plug in.
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