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dalvyx [7]
3 years ago
14

Find the conjugate of the complex number, use division: 2+i —— 1+i

Mathematics
1 answer:
Fittoniya [83]3 years ago
4 0

I assume you mean divide using the conjugate to rationalize the denominator and express the result in standard rectangular form.

\dfrac{2+i}{1+i} = \dfrac{2+i}{1+i} \cdot \dfrac{1-i}{1-i} = \dfrac{2(1)-i^2-2i+i}{1^2+1^2} = \frac 3 2 - \frac 1 2 i


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10x - 4 = 2 ( ? ) is it a) 5x - 4 b) 5x - 2 c) 10x - 4 d ) 10x - 8
attashe74 [19]
We have that

<span>10x - 4 = 2 ( ? )
</span>I proceed to replace the missing value with the given expression

case a-------------> <span>5x - 4
</span><span>then
</span>10x - 4 = 2 (5x-4 )--------> 10x - 4 = 10x-8--------> is not solution

case b-------------> 5x - 2
then
10x - 4 = 2 (5x-2 )--------> 10x - 4 = 10x-4--------> is  solution

 case c-------------> <span>10x - 4 
</span>then
10x - 4 = 2 (10x - 4 )--------> 10x - 4 = 20x-8--------> is not solution

 case d-------------> <span>10x - 8
</span>then
10x - 4 = 2 (10x - 8 )--------> 10x - 4 = 20x-16--------> is not solution

the answer is the option b) 5x - 2
3 0
3 years ago
Please help with this
sergiy2304 [10]

a. r + (-s) = r - s

b. r - (-s) = r + s

c. -r + (-s) = -r - s

d. -r - (-s) = -r + s

5 0
3 years ago
How can you rounded 2605 to the nearest hundred
EastWind [94]
The answer is 2600 or 3000 but tri the firstoe


7 0
3 years ago
Read 2 more answers
What is the range of the function f(x)=5x+4 when the domain is {-2,3,5}?
jonny [76]

Answer:

f (-2)=5×-2+4

= -10+4

= -6

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=15+4

=19

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=29

7 0
3 years ago
The volume of a sphere whose diameter is 18 centimeters is
Ber [7]

Answer:

please give more clarification

5 0
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