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Oxana [17]
3 years ago
13

Divide. a.1 − 2i/2i b. 5 − 2i/5 + 2i c.√3 − 2i/−2 − √3i

Mathematics
1 answer:
Umnica [9.8K]3 years ago
5 0

Answer:

(a) \frac{-1i}{2}-1[/tex]

(b) \frac{20i+21}{29}

(c) i

Step-by-step explanation:

We have to perform division

(a) \frac{1-2i}{2i}

So after division

\frac{1-2i}{2i}=\frac{1}{2i}-\frac{2i}{2i}=\frac{-1i}{2}-1

(b) We have given expression \frac{5-2i}{5+2i}

After rationalizing \frac{5-2i}{5+2i}\times \frac{5-2i}{5-2i}=\frac{(5-2i)^2}{25+4}=\frac{25+4i^2+20i}{29}=\frac{20i+21}{29}

(c) We have given expression \frac{\sqrt{3}-2i}{-2-\sqrt{3i}}

After rationalizing

\frac{\sqrt{3}-2i}{-2-\sqrt{3i}}\times \frac{-2+\sqrt{3i}}{-2+\sqrt{3i}}=\frac{-2\sqrt{3}+7i+2\sqrt{3}}{7}=\frac{7i}{7}=i

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Answer:

450 = 50x

Step-by-step explanation:

50x = 450

x = 450 / 50

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3 years ago
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Answer:

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Step-by-step explanation:

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3/2 dived by 7/8 dived by 1/2
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Answer:

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Step-by-step explanation:

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7/8

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1.714285714/0.5

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3 years ago
Ujalakhan help! (x+2)(y-1) Simplify.
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Answer:

We can use the distributive property.

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4 0
3 years ago
Read 2 more answers
If Z1 and Z4 are adjacent and
Andrew [12]
<h3>Answer: B) Linear pair postulate</h3>

Explanation:

As the name implies, "linear pair" means the two angles combine to form a straight line of 180 degrees. Think of gluing the angles together.

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