Hint for Section 6.7 Question 1

1. The Binomial Theorem states that given any real numbers a and b and any nonnegative integer n,

(a + b)n = n

(

n ) an-k   bk
S
k
k=0
=
an

+

(

n ) an-1 b1

+

(

n ) an-2 b2

+

...

+

(

n ) a1 bn-1

+

bn.

1 2 n-1

For each of the problems, identify the values to use for a, b and n,  and then substitute into the above equation and simplify the resulting expression.

Back to Section 6.7
Full solution