Question

1/I+1/i^2-1/^3-1/i^4 express as x+iy​

Answer 1

$\huge\underline\bold\red{★Answer★}$

$\frac{1}{i} + \frac{1}{ {i}^{2} } - \frac{1}{{i}^{3} } - \frac{1}{ {i}^{4} } \\ = \frac{1}{i} + \frac{1}{ - 1} - \frac{1}{ - i} - \frac{1}{1} \\ = \frac{1}{i} - 1 + \frac{1}{ {i} } - 1 \\ = - 2 + \frac{2}{i} \\ = - 2 + \frac{2i}{ {i}^{2} } \\ = - 2 - 2i \\ = - 2 + ( - 2)i$

Answer 2

-2 + (-2)i is the correct answer

Refer the attachment