(i)[2]
Find the first 3 terms when $(2 - y)^5$ is expanded in increasing powers of $y$.
(ii)[3]
Use the result from part (i) to determine the coefficient of $x^2$ in $(2 - (2x - x^2))^5$.
Mathematics 9709 · AS & A Level · Series
Mathematics 9709 · AS & A Level · Series
Find the first 3 terms when $(2 - y)^5$ is expanded in increasing powers of $y$.
Use the result from part (i) to determine the coefficient of $x^2$ in $(2 - (2x - x^2))^5$.