. If xy = yx and x = 2y, the value of y is:
Op 1: 1
Op 2: 2
Op 3: 3
Op 4: 4
Op 5: None of these
Correct Op : 2

• x^y=y^x taking log on both side we get logx^y=logx^y ylogx=xlogy and x=2y put ylog2y=2ylogy log2y=2logy log2y=logy^2 2y=y^2 dividing by 2 we get 2=y
• 7 years agoHelpfull: Yes(0) No(0)