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Ksenya-84 [330]
3 years ago
11

Anybody know the answer to this?

Mathematics
2 answers:
katovenus [111]3 years ago
8 0

First multiply

then add

4+3i/5+2i

anastassius [24]3 years ago
4 0

First distribute the top:

(2 - i) * (1 + 2i) = 2 - i + 4i - 2i^2 = 4 + 3i

Now, we have (4 + 3i)/(5 + 2i). We have to multiply by the complex conjugate of the denominator, which would be 5 - 2i:

{(4 + 3i) * (5 - 2i)}/{(5 + 2i) * (5 - 2i)} = (20 + 15i - 8i - 6i^2)/(25 - 4i^2) = (26 + 7i)/(25 + 4) = (26 + 7i)/29 = 26/29 + 7i/29

Your answer is:

26/29 + 7i/29.

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Sindrei [870]

Answer:

-20n/3n

Step-by-step explanation:

-4       1

---   /    ---

9n       15n

Keep, change, flip

- Keep the -4/9n

- Change the division sign to a multiplication sign

- Flip the 1/15n to 15n/1

-4       15n

---   *    ---

9n       1

Cross simplify.

9n divided by 3 is 3n.

15n divided by 3 is 5n.

-4       5n

---   *    ---

3n       1

-4 times 5n equals -20n

3n times 1 equals 3n

-20n      

---  

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3 years ago
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6 0
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Answer:

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Step-by-step explanation:

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