Answer:
40
Step-by-step 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:
40
Step-by-step explanation:
[tex]\dfrac{2}{z}+\dfrac{3}{z^2}[/tex]
[tex]\textsf{if} \ z=-\dfrac14[/tex]
[tex]\implies \dfrac{2}{-\frac14}+\dfrac{3}{(-\frac14)^2}[/tex]
[tex]\implies -\dfrac{2}{\frac14}+\dfrac{3}{\frac{1}{16}}[/tex]
[tex]\implies -2 \times 4+3 \times 16[/tex]
[tex]\implies -8+48[/tex]
[tex]\implies 40[/tex]
