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GenaCL600 [577]
2 years ago
6

Why does the expression i to the power 4n+2 is always equal to -1​

Mathematics
1 answer:
Alexandra [31]2 years ago
7 0

Answer:

See Below.

Step-by-step explanation:

We are given:

i^{4n+2}

Using exponent properties:

=i^{4n}\cdot i^2

Rewriting:

=(i^4)^n\cdot i^2

Since i⁴ = 1 and i² = -1:

=(1)^n\cdot -1

1 to any power is still 1:

=1\cdot -1 = -1

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A Web music store offers two versions of a popular song. The size of the standard version is 2.4 megabytes (MB). The size of the
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Answer:

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Step-by-step explanation:

I think the below is your full question:

<em>A Web music store offers two versions of a popular song. The size of the standard version is 2.1megabytes (MB). The size of the high-quality version is 4.5 MB. Yesterday, there were 1290 downloads of the song, for a total download size of 4821 MB. How many downloads of the high-quality version were there?</em>

Here is my answer:

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