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

14. teacher needs 70 lengths of string cut to 40 cm each. If balls of string are 10m longhow many balls will be needed.
Why was propaganda important during world war 1
True or false modern mali is unique due to the blending of islam and black african traditions from the middle ages and the rich tradition of cross-cultural exch
An electronic cover letter should be
How do changes in the money supply affect people and businesses?(please help! 80)
Two most abundant elements in Earth's core are
Which was a consequence of the Watergate scandal? The Electoral College met in a non-election year to choose a new president. An appointed vice president assume
during what stage of the cell cycle does replication occur
Please help with 1 and 2... Thanks Fam :) P.s Show Work
The moon will always appear over the eastern horizon at the same time each night. true or false