rahanumestiak
rahanumestiak rahanumestiak
  • 03-11-2020
  • Mathematics
contestada

If x+y=2 and x2+y2=2 , what is the value of xy ? Could you break it down for me?

Respuesta :

rakhimakhabib
rakhimakhabib rakhimakhabib
  • 03-11-2020

Answer:

its 1

Step-by-step explanation:

1+1=2

1^2+1^2=1

so 1*1=1

Answer Link
Аноним Аноним
  • 03-11-2020

Answer:

Note that (x+y)2=x2+y2+2xy. This means that:

xy=(x+y)^2−(x^2+y^2)

________________

                 2

So, it follows that:

xy=22−22=1

Step-by-step explanation:

1 = xy

CAN U MAKE ME BRAINLIEST?????? TYSMMMMMMM

Answer Link

Otras preguntas

What was one condition of the Compromise of 1850? a. Maine was admitted to the Union as a free state. b. Missouri was admitted to the Union as a slave state.
Wegener's supercontinent is known as ?
I don't know what the answer is please help ...
How do you make yellow and blue
True or False: A foodborne illness is a disease that is transmitted to people by food.
(25 pts ! ) Hi, can you correct this conclusion for my essay (structure/voc./gramar/ponctuation ...) : To sum up, although there are two sides to a coin , I bel
which is greater 2/6 or 1/3
need help unscrambling a spanish sentence: "clases / esta / tienes / qué / tarde
The greatest discharge of the Hudson River is generally observed near
What is the genre of paradise lost?