Work out the first three terms in the binomial expansion of 1(2+3x)2\dfrac{1}{(2 + 3x)^2}(2+3x)21.
[4]
b.
Write down the range of values of x x\,x for which the expansion is valid.
[1]
Markscheme
3.4.1 Sequences and Series (A-level only) Questions
67 exam-style questions on WJEC A Level Maths 3.4.1 Sequences and Series (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.