Same chapter4 marksDifficulty: Hard
Find the term independent of x in the expansion of (x + 1/x)10.
Binomial Theorem
2 marksDifficulty: Easy
Write the expansion of (x + y)4.
Original Khojo Papers practice question — not from a past board paper.
Answer
x4 + 4x3y + 6x2y2 + 4xy3 + y4
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The coefficients are the binomial coefficients 4C0 to 4C4, that is 1, 4, 6, 4, 1.
Related questions
From the same topic and chapter, at a similar level.
Same chapter3 marksDifficulty: Medium
Find the coefficient of x5 in the expansion of (2 + x)8.
Binomial Theorem
Same chapter3 marksDifficulty: Medium
Find the coefficient of x3 in the expansion of (1 + x)6.
Binomial Theorem
Same chapter3 marksDifficulty: Medium
Find the middle term in the expansion of (x + y)8.
Binomial Theorem
Same chapter3 marksDifficulty: Medium
Find the sum of the binomial coefficients in the expansion of (1 + x)n.
Binomial Theorem
Same subject2 marksDifficulty: Easy
If A = {1, 2} and B = {a, b}, write A × B and state the number of relations from A to B.
Relations and Functions