engineering recuitment GATE ME 2023-24 Test Series Engineering Mathematics Complex Variables Laurent's Series
The coefficient of z2 in the expansion of \(f\left( z \right) = \frac{1}{{\left( {z - 1} \right)\left( {z - 2} \right)}}\) in the region 1 < |z| < 2
1
- 1/4
2
1/4
3
- 1/8
4
1/8