Thread: Binomial Theorem.

If the numerical coefficients are disregarded, the following terms appear in the expansion of (x + y)11

State the value of k in each case:

a) x2 yk

b) xk y11

Originally Posted by acc

If the numerical coefficients are disregarded, the following terms appear in the expansion of (x + y)11

State the value of k in each case:

a) x2 yk

b) xk y11

The general term is .

a) If 11 - r = 2 then r = .... Therefore k = ....

b) If r = 11 then k = ....