1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
xz_007 [3.2K]
3 years ago
13

What types of numbers are undefined when they are under a radical sign? If you were dealing with the number √-1, would it be def

ined if you multiplied it by 2? Would it be defined if you subtracted some real number from it? Would it be defined if you squared it? Would it be defined if you cubed it?
Mathematics
1 answer:
Misha Larkins [42]3 years ago
8 0
The square root of a a negative integer is imaginary.
It would still be a negative under a square root if you multiplied it by 2, therefor it will still be imaginary, or I’m assuming as your book calls it, undefined.
2•(sqrt-1) = 2sqrt-1

If you add a number to -1 itself, specifically 1 or greater it will become a positive number or 0 assuming you just add 1. In that case it would be defined.
-1 + 1 = 0
-1 + 2 = 1

If you add a number to the entire thing “sqrt-1” it will not be defined.
(sqrt-1) + 1 = 1+ (sqrt-1)

If you subtract a number it will still have a negative under a square root, meaning it would be undefined.
(sqrt-1) + 1 = 1 + (sqrt-1)

however if you subtract a negative number from -1 itself, you end up getting a positive number or zero. (Subtracting a negative number is adding because the negative signs cancel out).
-1 - -1 = 0
-1 - -2 = 1

If you squared it you would get -1, which is defined
sqrt-1 • sqrt-1 = -1

and if you cubed it, you would get a negative under a square root again, therefor it would be undefined.
sqrt-1 • sqrt-1 • sqrt-1 = -1 • sqrt-1 = -1(sqrt-1)

Sorry if this answer is confusing, I don’t have a scientific keyboard, I’ll get one soon.
You might be interested in
Find the area of the shaded region
Novay_Z [31]
3.14159(pi) times radius squared
pi times 24 squared equals 1809.56
now find the area of the smaller circle
pi times 6 squared equals 113.1
now subtract the smaller circle from the bigger circle
1809.56 minus 113.1
answer is 1696.46

8 0
3 years ago
What does Point P on the number line represent? (Use the hyphen for negative numbers, such as −9)
Yanka [14]

Answer:

p on the -3 line

Step-by-step explanation:

3 0
3 years ago
Nathan deposit seven Knights of his allowance into his savings account he spent the remaining amount or 2.50 how much did Nathan
evablogger [386]

Total allowance = 11.25

amount to be deposited: 11.25 * 7/9 = 78.75/9 = 8.75

hope this helps.

4 0
3 years ago
what if 5 more students respond that they get to school by biking? would more students walk or ride to school explain
zimovet [89]
More students would bike to school because it says "5 more" students bike to school
4 0
3 years ago
The ages of the members of a family are 65, 58, 27, 25, 5, and 2 years old. What is the total admission price for the family to
const2013 [10]

Answer:$62

Step-by-step explanation: 62 becuase I took your formula and plugged it in. There are 2 kids under 12 so thats $16, then there are 3 people who are 12-59 that equals $52, then 1 person who is over 60. So $62.

6 0
2 years ago
Other questions:
  • What is the vertex of the function f (x) = x2 + 16x?
    14·1 answer
  • What is the length of segment AB? (Please Help)
    12·1 answer
  • What is the area of this parallelogram?
    9·1 answer
  • What is the radius of a circle with a circumference of 125.66 feet?
    15·2 answers
  • How many modes does this data set have? 80, 95, 100, 85, 95, 110, 90, 112, 110, 96, 100
    8·1 answer
  • On the unit circle, where 0 less-than pi, when is tangent theta undefined?
    12·1 answer
  • 50 twelves – 3 twelves<br> NEED ANSWER AND HELP ASAP!!!!!!!
    11·2 answers
  • What 21.807-10.739=?​
    6·1 answer
  • Integers are composed of whole number and
    6·2 answers
  • Find the value of x. The figure shows complementary angles. The label for the first angle is x plus 9 degrees. The label for the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!