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Andrew [12]
2 years ago
12

What is the sum of the complex numbers 2 + 4i,and 3 − 7i, where i=-1

Mathematics
2 answers:
Elodia [21]2 years ago
5 0

Answer:

5 - 3i.

Step-by-step explanation:

2 + 4i + 3 - 7i       Bring like terms together:

= 2 + 3 + 4i - 71

= 5 - 3i.

Ket [755]2 years ago
4 0

Answer:

5 - 3i

Step-by-step explanation:

Real numbers are a subset of the complex numbers. Therefore it would only make sense that the complex numbers follow the same rule of additivity and multiplication as real numbers do:

(2+4i)+(3-7i)=2+3+4i-7i=5-3i

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i hope this helps!

6 0
3 years ago
Read 2 more answers
Please help thx a bunch
kirza4 [7]
A.
2/3A=-24
time both sides by 3/2
A=-72/2
A=-36

B.
20=-B/0.2
times both sides by 0.2
4=-B
times -1
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distance between 2 points x and y is |x-y|

so
distance between A and B is distance between -4 and -72 or
|-72-(-4)|=|-72+4|=|-68|=68
the distance is 68
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3 years ago
Estimate 36.76 divided by 2.9 using compatible numbers - will give brainliest for correct answer
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Step-by-step explanation:

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