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 a chess match, a win counts as 1 point, a draw counts as 0.5 point, and a loss counts as 0 points. After 21 games between the two players, the winner was 8 p
in which changes of state dose atoms lose energy
Solve using addiction method show all work. 4x=5y+6 3y+2x=-8
y/a −b= y/b −a, if a≠b solve for y
which of these was one of the few successes of the United States government under the Article of Confederation
how to describe the rotation and revolution of the moon??
I need help with this maths question thank you
Help plz with part 2 a and b
What is food processing
A motorized bicycle is not a vehicle according to Florida law. A.True B.False