You have to be at your strongest when you’re feeling at your weakest.
Total number of terms in a Binomial Expansion, General Term of Binomial Expansion, Finding Term in a Binomial Expansion
| NCERT Exercise 8.2 |
Find the coefficient of
Question 1. \( x^5 \) in \((x+3)^8\)
Question 2. \( a^5b^7\) in \( (a-2b)^{12}\)
Write the general term in the expansion of
Question 3. \( (x^2-y)^6 \)
Question 4. \( (x^2-yx)^{12}, x \ne 0\)
Question 5. Find the 4th term in the expansion of \( (x-2y)^{12}\).
Question 6. Find the 13th term in the expansion of \( \left ( 9x – \frac{1}{3 \sqrt{x}} \right )^{18}, x \ne 0 \)
Question 9. In the expansion of \((1+a)^{m+n}\), prove that coefficients of am and an are equal.
Question 12. Find a positive value of m for which the coefficient of x2 in the expansion \((1+x)^m\) is 6.
