Question

if x=√5+√3/√5-√3 y=√5-√3/√5+√3 then find the value of x+y +xy​

Answer 1

Step-by-step explanation:

x + y + xy = 9

Step-by-step explanation:

If x = and y =

Then (x + y) =

=

= [Since (a + b)(a - b) = a² - b²]

=

Similarly, xy =

=

Now x + y + xy = 8 + 1

= 9

Therefore, (x + y + xy) = 9