Question

103. If x+y=3, x2 + y2 =5 then xy is :
(1) 5
(2) 3
(3)
2
(4) 1​

Answer 1

Answer:

answer is (3) 2 and (4)

Step-by-step explanation:

Answer 2

Step-by-step explanation:

x+y=3, x^2 +y^2=5

x^2 +y^2 =(x+y)^2-2xy

=>5=(3)^2-2xy

=>5=9-2xy

=>-2xy=-4

=>xy=2