If `y=2^(-x),` then `(dy)/(dx)` is equal to

If x=e^(x/y), then (dy)/(dx) is equal to

If x^(y)=e^(x-y) , then (dy)/(dx) is equal to

If 2^(x)+2^(y)=2^(x+y) then (dy)/(dx) is equal to

If 2^(x)+2^(y)=2^(x+y), then (dy)/(dx) is equal to -(2^(y))/(2^(x))(b)(1)/(1-2^(x))1-2^(y)(d)(2^(x)(1-2^(y)))/(2^(y)(2^(x)-1))

If x^y=y^x , then (dy)/(dx) is equal to......

If (cos x)^(y) = (cos y)^(x) , "then" (dy)/(dx) is equal to

If y = x tan y , then (dy)/(dx) is equal to