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
n200080 [17]
2 years ago
6

If \: x + y + z = 0 \: then \: show \: that \: {x}^{3} + {y}^{3 } + {z}^{3} =3xy​

Mathematics
1 answer:
tankabanditka [31]2 years ago
8 0

Answer:

Given

x+y+z=0

⟹x+y=−z

Cubing on both sides

(x+y) 3 =(−z) 3

⟹x 3 +y 3 +3x 2y+3xy 2 =−z 3

⟹x 3 +y 3 +3xy(x+y)=−z 3

⟹x 3+y 3+3xy(−z)=−z 3

⟹x 3 +y 3−3xyz=−z 3

⟹x 3 +y 3 +z 3 =3xyz

Step-by-step explanation:

Hope it is helpful.....

You might be interested in
How do you solve equations and check for solutions
Kobotan [32]
It all depends on the math question but usually you solve for x, then check it. Plug x back in and see if it works. But it all depends on the math problem

3 0
3 years ago
Read 2 more answers
Identify Arithmetic Mean, Geometric Mean and Harmonic Mean from the following averages: 56.4, 59.8 and 55.8
photoshop1234 [79]
If you would like to calculate the arithmetic mean, geometric mean, and harmonic mean from the following averages, you can calculate this using the following steps:

averages: 56.4, 59.8, 55.8
the number of values: 3

arithmetic mean:
(56.4 + 59.8 + 55.8) / 3 = 57.33

geometric mean:
(56.4 * 59.8 * 55.8)^(1/3) = 57.31

harmonic mean:
3 / (1/56.4 + 1/59.8 + 1/55.8) = 57.28
7 0
3 years ago
8 x 6 = (4 x 6) (__x 6) <br> = 24 + __<br> =
guajiro [1.7K]

Answer:

8x6= (4x6) + (4x6)

= 24+24

= 48

Step-by-step explanation:

Hope this helps :)

8 0
3 years ago
Read 2 more answers
49 POINTS! PLEASE HELP!
SSSSS [86.1K]

Answer:

B (2, 2)

Step-by-step explanation:

Given the graphs of a system of equations then the solution is at the point of intersection of the 2 lines.

That is (2,2) ← is the solution → B

5 0
3 years ago
Read 2 more answers
A frog leaps 24 inches. The highest point in the jump is 6 inches. Assume the frog starts at (0,0). What quadratic function mode
Ivanshal [37]
The path is in the shape of a parabola, the horizontal length is 24, so the middle point is at x=12, the symmetry line is x=12, the highest point (the vertex) is at (12,6)
the equation in vertex form is y=a(x-12)²+6
next, find a by using either one of the two points, the starting point (0,0) or the end point (0,24). obviously (0,0) is easier to calculate:
0=a(0-12)² +6
a=-1/24
so the quadratic equation is y=-\frac{1}{24} (x-12)^2+6
5 0
3 years ago
Other questions:
  • Explain the meaning of the term​ "distribution of a​ variable."
    8·1 answer
  • How much gas is 3/8 gallons when used up 2 1/4 gallon of gas?
    9·1 answer
  • If 3/5 of a number is 42,what is the twice number
    11·2 answers
  • The ages of students in a community science club are 13,11,14,12,8 and 10 what is the range of ages in this club?
    7·1 answer
  • I neeeeed help this is my last question
    14·1 answer
  • YOU WILL BRAINLIST ALSO 47 POINTS!!!
    8·1 answer
  • At noodles &amp; company restaurant, the probability that a customer will order a nonalcoholic beverage is .48. Find the probabi
    10·1 answer
  • Solve square root of x+3 = 2
    6·2 answers
  • What is the answer of 24:93=5:?
    12·1 answer
  • The list of all factors for 21 is 1, 3, 7, and 21.<br><br><br> True False
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!