Question

Expand each of the following binomials in ascending power of 1/x a) 1/1+2x b) 1/(2-x)²​

Answer 1

Explanation:

a) 1/(1 + 2x) = 1 - 2x + 4x^2 - 8x^3 + ...

b) 1/(2 - x)^2 = 1/(4 - 4x + x^2) = 1/4 - 1/2x + 1/4x^2 = (1/4) - (1/2)x + (1/4)x^2