Same chapter3 marksDifficulty: Medium
Find the middle term in the expansion of (x + y)8.
Binomial Theorem
3 marksDifficulty: Medium
Find the coefficient of x3 in the expansion of (1 + x)6.
Original Khojo Papers practice question — not from a past board paper.
Answer
20
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The coefficient of xr in (1 + x)n is nCr, so here it is 6C3 = 20.
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