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Evgesh-ka [11]
3 years ago
9

Write a quotient 10/1+2i in the form a+bi I need help 20 points

Mathematics
1 answer:
zhenek [66]3 years ago
5 0

Answer:

<em>2 - 4i</em>

Step-by-step explanation:

Given the complex number  10/1+2i, to write this in the form a + bi, we will rationalize the function as shown;

= 10/1+2i * 1-2i/1-2i

= 10(1-2i)/(1+2i)(1-2i)

= 10-20i/(1-2i+2i-4i²)

= 10-20i/1-4(-1)

= 10-10i/1+4

= 10-20i/5

= 10/5 - 20i/5

= 2 - 4i

<em>Hence the expression in the form a + bi is 2 - 4i</em>

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SCORPION-xisa [38]
The area of a rectangle can be calculated by the product of its length and the width. Here we are given the area and the length so we can simply calculate for width. The perimeter is the sum of all the side lengths of the shape. We calculate as follows:

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Hope this answers the question. Have a nice day.
6 0
3 years ago
What the answer to this question
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When the inequality sign is >/< (greater than/less than), the dot/endpoint is an open/unfilled circle.

When the inequality sign is ≥/≤ (greater than or equal to/less than or equal to), the dot is a closed/filled circle.

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Step-by-step explanation:

that's what I got

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