(i)[2]
In $(1 - px)^6$, $p$ is a non-zero constant. Find the first three terms of the expansion of $(1 - px)^6$ in ascending powers of $x$.
(ii)[3]
The coefficient of $x^2$ in the expansion of $(1 - x)(1 - px)^6$ is zero. Find the value of $p$.
Mathematics 9709 · AS & A Level · Series
In $(1 - px)^6$, $p$ is a non-zero constant. Find the first three terms of the expansion of $(1 - px)^6$ in ascending powers of $x$.
The coefficient of $x^2$ in the expansion of $(1 - x)(1 - px)^6$ is zero. Find the value of $p$.