Question

If x2 +y2 =29xy then find the value of 2log(x-y)

Answer 1

Adding the three given term we get, x2+y2+z2=y+z+x+z+x+yx2+y2+z2=2(x+y+z)Here by guessing we can see that, x=y=z=2 is satisfying the above soNow 11+x+11+y+11+z=11+2+11+2+11+2=33=1