Question

if x^-1 + y^-1 = 2^-1 and x + y = 10 find xy​

Answer 1

Answer:

Step-by-step explanation:

1/x +1/y = 1/2

x+y / xy = 1/2

It is given that x+y = 10

10 /xy = 1/2

10 = xy /2

20 = xy