Question

What is 2/z+3\z^2

If z= -1/4

Answer 1

40

Explanation:

Given :-

z = -1/4

Inputting the values :-

2/z + 3/z²

2/(-1/4) + 3/(-1/4)²

(2 x -4) + (3 x 16)

-8 + 48

= 40

Solution :-

40

Answer 2

40

Explanation:

`(2)/(z)+(3)/(z^2)`

`\textsf{if} \ z=-\frac14`

`\implies (2)/(-\frac14)+(3)/((-\frac14)^2)`

`\implies -(2)/(\frac14)+(3)/((1)/(16))`

`\implies -2 * 4+3 * 16`

`\implies -8+48`

`\implies 40`