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

Between 1910 and 1920 million of blacks moved from the south to the north in search of jobs in what became known as the
Why does the hypocrites sin fit their eternal punishment A) their beautiful but heavy lead cloaks suggests they lived a good life from the outside but were evi
4. Charlotte was not hungry that morning, so she just had a smidgen of cake at the office birthday party. Which words in this sentence provide a clue to the
Write MDCCCXXXVI as a number.
please help me!!!!!!!
Please help me on this question
Using fossils, what can scientists most accurately determine about a mass extinction?
What is the abiotic factor for a grizzly bear
Can you run for president if you were not born in the us
someone please help I cannot figure this out PLEASE