Question

if
${x}^{2} + {y}^{2} = 13$
and xy=25/4 then find
$x - y$
​

Answer 1

Answer:

(x-y)²=x²+y²-2xy

(x-y)² = 13 - 2*25/4

(x-y)²= 13-25/2

(x-y)²= (26-25)/2

(x-y)²= ½

x-y = √(½)

x-y = 1/√2

Answer 2

Answer ----> Referred to the image

Hope this will help you ✌✌✌