Question

$x^y = y^x$ കൂടാതെ x = 2y എങ്കിൽ y എത്ര ? 

• A. 3
• B. x
• C. 2
• D. $\frac{1}{3}$

Answer 1

Answer:

C. 2

x = 2y (2y) ^y =y^(2y ) 2^y . y^y = y^y . y^y 2^y = y^y y = 2