1.

If x ^(y) = log x then (dy)/(dx) at x =e is

Answer»

`y/x((In x^(oo x - 1)) + 2ln(ln("log " x))`
`y/x(log x)^(log(logx))(2LOG(logx)+1)`
`y/(x In x) [(In x)^2 + 2ln(log x)]`
`(y log y)/(x log x) [2 log(logx) + 1]`

ANSWER :B::D


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