MATHEMATICS HIGH SCHOOL

Determine which expressions represent real numbers and which expressions represent complex numbers.0 + 91

7 - 51

V-6

-12

- 2 + 19 (5)

2 - 72

16

Real Numbers

Complex Numbers

Answers

Answer 1
Answer:

There seems to be a mistake in typing. You probably type the letter "i" as "1", so it is difficult to tell which numbers are complex numbers.

I will however explain what complex numbers look like, which will help you in determining which numbers are complex numbers, and the rest are real numbers.

Step-by-step explanation:

Complex numbers are numbers that include the square root of a negative number.

It is not possible to have a value for an expression with a square root of a negative number, then the letter j or i were introduced to help represent these kinds numbers.

√-1 = i or j (anyone is fine)

Knowing the square root of -1 is i, we can write the square root of any negative number with ease.

√(-6) = √(-1) × √6, right?

= i × √6

= i√6

And so on.

So, basically, the numbers that include the letter 'i', or √(-1) in them are the complex numbers. The rest are real numbers.

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Solve for x
9 (x +2) < 3(3-5)

Answers

Step-by-step explanation:

9x+18 < 9-15

1)9-15= -6

9x+18 < -6

9x+18= -5

9x= (-5) - 18

9x= -23

x= 23/9=2 5/9

X=2,55556

Name line n in three other ways

Answers

<----->
    n
    
sorry thats all i got

HELP!!!!!!What is the equation of the graph below?

Answers

The answer to your question is y = sin(x + 90) as we have a sine graph phase shifted 90 units left

Explain the standard process for adding and subtracting two fractions?

Answers

To add fractions, you have to have common (shared) denominators.
hope this helps :) it took me lots of editing hope it helpful btw my spelling is off

I dont understand this

Answers

Hello,

Answer D. y²=2e^x+14
Indeed

yy'=e^x
=>y²/2=e^x+C
if x=0 and y=4==>16/2=e^0+c==>8-1=c==>c=7

y²/2=2e^+14

Whats 3P2 ?please need for math

Answers

Permutation:\ \ \ 3P2= (3!)/((3-2)!) = (2\cdot3)/(1) =6
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