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2 years ago

Simplify the complex number i^28 as much as possible.

Mathematics

1 answer:

ella [17]2 years ago

5 0

let's recall that i⁴ = 1 so then $i^{28}\implies i^{4\cdot 7}\implies (i^4)^7\implies (1)^7\implies 1$

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Shalnov [3]

Step-by-step explanation:

Fie x numărul de copii

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2 years ago

24.. A toy company makes 40 plastic harmonicas in 30 minutes. At this

Dahasolnce [82]

Answer:

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Step-by-step explanation:

Well 40 can go into 200 5 times so you would do 5 times 30 minutes which would be 150 minutes and then you would divide it by 60 to simplify which would be 2 hours and 30 minutes. So it will take 2 and a half hours to make 200 harmonicas.

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2 years ago

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Mariana [72]

Answer:

Step-by-step explanation:

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2 years ago

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1 year ago

Solve the following system of equation

krok68 [10]

Answer:

x = 6 , y = -4 , Z = -1

Step-by-step explanation:

Solve the following system:

{2 x + 3 y - Z = 1 | (equation 1)

3 x + y + 2 Z = 12 | (equation 2)

-3 + x + 2 y = -5 | (equation 3)

Express the system in standard form:

{2 x + 3 y - Z = 1 | (equation 1)

3 x + y + 2 Z = 12 | (equation 2)

x + 2 y+0 Z = -2 | (equation 3)

Swap equation 1 with equation 2: