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

Evaluate each expression, Giving the answer in Scientific notation. 1) 5.3 x 10^4 + 4.7 x 10^4 2) 3.7 x 10^6 - 3.3 x 10^6 3)4.8 x 10^-3 + 6.3 x 10^-3 4)6.6 x 10
factorize 12f-42 thank you
Question 2 of 5 Where does the prince place the blame for all the deaths? O A. Friar Lawrence and Friar John OB. Tybalt and Mercutio OC. The feuding families an
Which question would most likely help you understand this excerpt from Adam Smith's book The Wealth of Nations?
Picture has the choices
Which items are biomass energy sources? Select all correct answers. the sun wood chips manure paper
As people enter into middle and late adulthood, development tends to involve O growth; expectations O maintenance; loss O maintenance; growth O growth; loss and
A This Nation was founded by men of many nations and backgrounds. It was founded on the principle that all men are created equal, and that the rights of every m
what is the x-intercept of 3y=2x-6 please also show steps this is due in a few minutes !!!!
what is 6÷2(1+2)someone help ​