3.4 Sequences and Series (A-level only)

a.

Work out the first three terms in the binomial expansion of $1(5+2x)2\displaystyle \frac{1}{(5+2x)^2}$

[4]

b.

Write down the range of values of $x\,$ for which the expansion is valid.

[1]

a.

Work out the first three terms in the binomial expansion of $1(5+2x)2\displaystyle \frac{1}{(5+2x)^2}$

[4]

b.

Write down the range of values of $x\,$ for which the expansion is valid.

[1]

3.4 Sequences and Series (A-level only) Questions