Find the first four terms, in ascending powers of xxx, in the expansion of (1−2x)8(1-2x)^8(1−2x)8.
[4]
b.
The coefficient of x3 x^3\,x3 in the expansion of (1−2x)8(1+kx)(1-2x)^8(1+kx)(1−2x)8(1+kx) is zero. Determine the value of kkk.
[3]
Markscheme
1.4.1 Sequences and Series - The Binomial Theorem Questions
108 exam-style questions on WJEC A Level Maths 1.4.1 Sequences and Series - The Binomial Theorem. Each one has a worked solution and a mark scheme showing where the marks go.