Question
Consider the expansion of (x + 2)11.
(a) Write down the number of terms in this expansion.
(b) Find the term containing x2.
(a) Write down the number of terms in this expansion.
(b) Find the term containing x2.
Answers
Reiny
I am sure you meant: (x + 2)^11
there will be 12 terms in the expansion.
they are:
x^11 + V(11,1) (x^10)(2) + C(11,2) (x^9)(2^2) + ... + C(11,9) x^2 (2^9) + C(11,10) x^1 (2^10) + 2^11
which term contains x^2 ??
calculate it.
there will be 12 terms in the expansion.
they are:
x^11 + V(11,1) (x^10)(2) + C(11,2) (x^9)(2^2) + ... + C(11,9) x^2 (2^9) + C(11,10) x^1 (2^10) + 2^11
which term contains x^2 ??
calculate it.