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.