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Free_Kalibri [48]

3 years ago

14

4. If z, a+bi and z, c+di represent two complex numbers with real components a, b, c and d, then which of the following represen

ts the coefficient of i in the product of z, and z,?
(1) ac-bd

(2) ad-be

(3) ab+cd

(4) be+ad

1 answer:

WINSTONCH [101]3 years ago

4 0

Answer:3

Step-by-step explanation:

You might be interested in

3(v-3)-7v how to simply this equation

Vadim26 [7]

Answer:

$-4v-9$

Step-by-step explanation:

Distribute the $3(v-3)$ , we get:

$3v-9-7v$

Combines like-terms, meaning we combine the numbers with v.

$-4v-9$

8 0

3 years ago

Read 2 more answers

If 5x2+4x+xy=3 and y(3)=−18, what is an equation of the tangent line to the graph at the point (3,−18)

Paha777 [63]

I believe the answer is:

y+18 = (-52/3)(x-3) in point slope form

Let me know if you need an explanation. Hope this helps.

8 0

3 years ago

ΔEFG is located at E (0, 0), F (−7, 4), and G (0, 8). Which statement correctly classifies ΔEFG?

MariettaO [177]

Answer:

ΔEFG is an isosceles triangle.

Step-by-step explanation:

Given:

E (0, 0),

F (−7, 4),

G (0, 8)

ΔEFG

Solution:

Distance formula

Distance d = $\sqrt{(x_2-x_1)^2 +( y_2-y_1)^2$

Step 1: Finding the length of EF

By using distance formula,

$EF = \sqrt{(-7 - 0)^2 + (4-0)^2}$

$EF = \sqrt{(49) + (16)}$

$EF = \sqrt{(49) + (16)}\\EF = \sqrt{65}\\$

Step 2: Finding the length of FG

By using distance formula,

$FG = \sqrt{(0-(-7))^2+(8-4)^2}\\FG = \sqrt{(7)^2 +(4)^2}\\FG = \sqrt{49 +16}\\FG = \sqrt{65}$

Step 2: Finding the length of GE

$GE= \sqrt{(0-0)^2 + (0-8)^2}\\\\GE =\sqrt{(-8)^2}\\GE = \sqrt{64}\\GE = 8$

Thus we could see that the sides EF = FG

So it is a isosceles triangle.

6 0

2 years ago

garri49 [273]

Answer:

j=8

Step-by-step explanation:

30-6=24 divived by 3 = 8 which means jordans age is 8 and matthew is 16

5 0

2 years ago

X + (4 1/3)= (-2 5/6)

vladimir1956 [14]

Answer:

x+((4 + 1/3))=(-(2 + 5/6))

6x = -43

x≈ -7.166667

3 0

3 years ago