Question

if x, y, z are in AP then fins the value of (x+y-z) ( y+z-x) ​

Answer 1

Answer:

Let x=a-d

y=a

z=a +d

...

(a-d+a-a+d)=a

(a+a+d-a-d) =a

So the ans... (a)(a)=a²

Hope it help you