What is 5/i+2/(i^3)-(20)/(i^{18)} ?

The solution to 5/i+2/(i^3)-(20)/(i^{18)} is 20-3i

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simplify 5/i+2/(i^3)-(20)/(i^{18)}

simplify

\frac{5}{i} + \frac{2}{i ^{3}} - \frac{20}{i ^{18}}

20 - 3 i

Solution steps

\frac{5}{i} + \frac{2}{i ^{3}} - \frac{20}{i ^{18}}

\frac{5}{i} = - 5 i

\frac{2}{i ^{3}} = 2 i

\frac{20}{i ^{18}} = - 20

= - 5 i + 2 i - (- 20)

Apply rule:

a - (- b) = a + b

2 i - (- 20) = 2 i + 20

= - 5 i + 2 i + 20

Add similar elements:

- 5 i + 2 i = - 3 i

= - 3 i + 20

Rewrite in standard complex form:

20 - 3 i

= 20 - 3 i

24 x y^{3} - 18 x y

3 (x + 4) - x > 4

u^{2} + 9 u + 14 = 0

0 = 6 y - 40

\frac{x ^{3} y ^{12} y ^{- 14}}{x ^{4}}

What is 5/i+2/(i^3)-(20)/(i^{18)} ?
The solution to 5/i+2/(i^3)-(20)/(i^{18)} is 20-3i