Question

if 2,x,2root2 are inA.P,then find the common difference

Answer 1

hey mate!!

x=root 2 +1

common difference=2root2-2root+1
common difference=3 root 2

hope it helped!!

Answer 2

this is not a ap because a=2 d=a2-a1=x-2 and again take a3-a2=2root2-x here common difference is not equal therefore not a ap