Second derivative of y=log(logx)
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y =log (logx )
differentiate wrt x
dy/dx ={1/logx}1/x =(xlogx)^-1
again differentiate wrt x
d^2y/dx^2 =-(xlogx)^-2 {logx + x 1/x }
= -(1 + logx )/(x. logx)^2
differentiate wrt x
dy/dx ={1/logx}1/x =(xlogx)^-1
again differentiate wrt x
d^2y/dx^2 =-(xlogx)^-2 {logx + x 1/x }
= -(1 + logx )/(x. logx)^2
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