1044537
05.10.2019 •
Mathematics
Given 2x^2=-8, x is
a.-2
b. 2
c. 2i or -2i
d. 4i or -4i
Solved
Show answers
More tips
- S Style and Beauty What Peeling is Suitable for Sensitive Skin?...
- A Auto and Moto What Is the Cost of Customs Clearance for a Car in Russia?...
- L Leisure and Entertainment Should You Buy a Ceramic Knife?...
- C Computers and Internet How to easily and quickly disable Firebug in Gmail and Google Docs...
- G Goods and services How to sew a ribbon: Tips for beginners...
- F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
- C Computers and Internet Which Phone is Best for Internet Surfing?...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
Answers on questions: Mathematics
- M Mathematics What conditions prove a quadrilateral is a square...
- M Mathematics Which of the following rational functions is graphed below? 10+ - 10 10 - 10+ O A. AX) = +36 O B. Fx) = (x-6)(x+6) O C. Fx) = x+ 6 O D. F(x) = X + 6...
- B Biology Usually expressed as a fraction, this is way of showing the relative size of two numbers, as when 24/30 is written as 4/5, meaning 24 has as many groups of 4 as 30 has...
- S Spanish Comemos pollo en el comedor. true false...
- B Biology Gametes that are motile are often called...
Ответ:
2i or -2i
Step-by-step explanation:
2x² = -8 First, clear x.
x² = -8/2 Solve
x² = -4 Now, eliminate the square of x by solving the square root of -4.
x = √-4
x = 2i or -2i Is an imaginary number.
Ответ:
The value of x is
Given: Solution:In this problem, we need to find the variable ‘x’ where the value of the x will change according to the conditions provided in the problem. The value of the variable of determined with the help of the constants whose values never change.
Now, in the given problem, we have to bring the constants on one side and variable on one side.
So, on bring the 2 to denominator,
On taking square root,
Since, the square is always positive, we cannot get a number with negative sign as a square. So, the square root of the negative number becomes an imaginary number because that number doesn't exist.
Ответ:
ive an example of two angles that are complementary. Are the two angles you chose adjacent
give me answer asap plz
Step-by-step explanation: