If(x,y) (x,y) is the solution of the following equations (2x)^log2= (3y)^log3(2x)log2=(3y)log3 and 3^logx = 2^logy3logx=2logy then x is equal to?

1 Answer
Jun 3, 2018

x=1/2,y=1/3x=12,y=13

Explanation:

Taking the logarthm on both sides (the first equation) we get
log(2)(log(2)+log(x))=log(3)(log(3)+log(y))log(2)(log(2)+log(x))=log(3)(log(3)+log(y))

Doing the same with the second equation:

log(y)=log(x)*log(3)/log(2)log(y)=log(x)log(3)log(2)
Substituting

a=log(x)a=log(x)

we get

log(x)(log^2(2)-log^2(3))/log(2)=-(log^2(2)-log^2(3))log(x)log2(2)log2(3)log(2)=(log2(2)log2(3))

so a=-log(2)a=log(2)

log(x)=log(2^(-1))log(x)=log(21)

x=1/2x=12

In the first equation we get

1=3y1=3y

y=1/3y=13