Question

If x,y,z are in AP then find the value of (x+y-z) (-x+y+z) pls answer fast

Answer 1

Step-by-step explanation:

X,Y,Z are in AP

then y-x=z-y

2y=x+z

y=x+z/2

According to question

(x+y-z)(-x+y+z)

x-z+x+z  (-x+x+z +z)

       2            2

(2x-2z+x+z)        (x+z+2z-2x)

2                            2

1/4 (3x-z)(3z-x)