Question

if x-y=1,x+y=1 then x^2+y^2+a^2=5 then a is​

Answer 1

Answer:

a=2

Step-by-step explanation:

please mark me as brainliest

Answer 2

Step-by-step explanation:

solving simultaneously by adding first 2 equation

we get

x-y+x+y=2

2x=2

x=1

now put x=1 in first equation

we get

y=0

now put value of x and y in last equation

we get

1^2+0^2+a^2=5

a^2=4

a=+2,-2

Mark me as branliest.