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Digiron [165]
3 years ago
5

The sum of two complex numbers, where the real numbers do not equal zero, results in a sum of 34i. Which statement must be true

about the complex numbers? I will give brainliest to the person who has the first correct answer!!! HURRY!!!
1) The complex numbers have equal imaginary parts.


2) The complex numbers have equal real parts.


3) The complex numbers have opposite imaginary parts.


4) The complex numbers have opposite real parts.
Mathematics
2 answers:
tia_tia [17]3 years ago
7 0
The Answer is number 3
valina [46]3 years ago
7 0

Answer:

The complex numbers have opposite imaginary parts.

Step-by-step explanation:

right on edge 2020

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I upped the steaks plz answer this, I will give brainiest
Bad White [126]

Answer:

\displaystyle   x =   \frac{3}{4}

Step-by-step explanation:

we are given that

\displaystyle P =  \left(x,  - \frac{  \sqrt{7} }{4}  \right)

we want to figure out x

remember that,

In <u>unit</u><u> </u><u>circle</u> x coordinate is considered cos and y coordinate is considered sin

so in order to figure out x we should figure out the value of <u>cos</u> to do we can consider <u>Pythagoras</u><u> trig</u><u> </u><u>indentity</u>

given by

\displaystyle  \sin ^{2} ( \theta)  +  {  \cos}^{2} ( \theta) = 1

we are given sin=-√7/4 thus

substitute:

\displaystyle   \left( - \frac{ \sqrt{7}  }{4}  \right) ^{2}   +  {  \cos}^{2} ( \theta) = 1

simplify square:

\displaystyle  \frac{7}{16}  +  \cos ^{2} ( \theta)  = 1

move left hand side expression to right hand side and change its sign:

\displaystyle   \cos ^{2} ( \theta)  = 1 -  \frac{7}{16}

simplify Substraction:

\displaystyle   \cos ^{2} ( \theta)  =  \frac{9}{16}

square root both sides:

\displaystyle   \cos ^{} ( \theta)  =   \pm\frac{3}{4}

since in unit circle cos is x and P belongs to Q:IV negative cos isn't applicable

hence,

\displaystyle   x =   \frac{3}{4}

5 0
3 years ago
6) Which expressions are equivalent? Choose ALL that apply.
vagabundo [1.1K]

Answer

7^4

7 to the fourth power

7∙7∙7∙7

Step-by-step explanation

♡ ∩_∩

(„• ֊ •„)♡

┏━∪∪━━━━┓

♡ good luck 。 ♡

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5 0
3 years ago
Which of these describes the function graphed below
Allisa [31]

Answer:

B

Step-by-step explanation:

5 0
3 years ago
Help me pls !!!!!!!!!!
Levart [38]

Answer:

c and d

Step-by-step explanation:

6 0
3 years ago
Help with number 9 please please thank you
Harlamova29_29 [7]

Answer:

\large\boxed{53.9ml=0.0539l}

Step-by-step explanation:

1l=1,000ml\to1ml=\dfrac{1}{1,000}l=0.001l\\\\\text{Therefore}\\\\53.9ml=53.9\cdot0.001l=0.0539l

6 0
3 years ago
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