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

In its past decisions, the Supreme Court has reminded us that there are "categories of speech . . . fully outside the protection of the first amendment" (Unite
A cookie recipe calls for cups of flour. how much flour is needed to make only 50% of the recipe?
Let's start with a city that has played a huge part in the shaping of the continent we call Europe today. What city is this?
when does the resolution happen in a story?
NEED HELP ASAP PLEASE HELP Select one: a. 100° b. 40° c. 200° d. 80°
LM=7, LN=10, MN=5, What can you conclude about the angle measures
In 1899, the united states divided control of the samoa islands with
Choose the best description for the real number 34 over 3. Irrational, because it is a fraction Irrational, because it is a repeating decimal Rational, becau
At first, man was enslaved by the gods. But he broke their chains. Then he was enslaved by the kings. But he broke their chains. He was enslaved by his birth, b
What was Christina Aguilera like as a child.