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umka2103 [35]
3 years ago
15

If u = 1 + i and v = 1 – i, what is u + v? A.2 B.0 C.-2i D.-2 E.2i

Mathematics
2 answers:
Gnoma [55]3 years ago
7 0

Answer:

2

Step-by-step explanation:

Remark

Treat that i as though it were any letter used as variable. The fact that it represents the square root of minus 1 is not an issue here. If you have 5x -5x the result is 0.

Same thing with this question

u + v = 1 + i + 1 - i = 2 The two "i"s cancel and the two "1"s add. The answer is 2  

Scrat [10]3 years ago
3 0

Answer:

2

Step-by-step explanation:

u = 1+i

v = 1-i


add them together

1+i

1-i

------

2 +0


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Use polynomial long division to find the quotient and the remainder when 2x^3-3x^2-2x-1 is divided by x-3
Alexxx [7]

Answer:

  • quotient: 2x^2 +3x +7
  • remainder: 20

Step-by-step explanation:

See the attachment.

At each step, the value being subtracted from the dividend is the product of the quotient term and the divisor. The quotient term is found by dividing the highest-degree term of the dividend by the highest degree term of the divisor (x).

When the dividend has a degree that is less than the degree of the divisor, we call that value (20) the remainder.

4 0
3 years ago
PLZ HELP NEED ASAP, much appreciated
Margaret [11]

Answer:

Ok that's not it

x=-1 then y=4

x=0 then y= 6

x=1 then y = 8

x=2 then y= 10

x=3 then y= 12

Step-by-step explanation:

when y=2x+6

you have to plug what it says x is in each of the equations.

For the first one it says x=-1

you then plug that in and you get y=2(-1)+6

then you go through PEMDAS and first you get y=-2+6

-2+6 = 4

therefore y=4

and you just go through the rest wiht that

Step-by-step explanation:

6 0
2 years ago
PLZ help me out with this
Marta_Voda [28]

Answer:

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Step-by-step explanation:

bisecting an angle means dividing the angle into two equal parts

5 0
3 years ago
A set of 3 consecutive integers has a sum of 15. Which integers are they?
ludmilkaskok [199]

The answer is 4+5+6=15.Hope that helps. :)

5 0
2 years ago
Read 2 more answers
Compare using &lt;, &gt; or =<br> -15_____-21<br><br> A. &lt;<br> B. &gt;<br> C. =
Scilla [17]

the answer is -15 > -21

7 0
3 years ago
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