1.

If f[1, oo)rarr[1, oo) is defined by f(x)=2^(x(x-1)) then f^(-1)(x)=

Answer»

`(1/2)^(x(x-1))`
`1/2 (1+ SQRT(1+4 log_(2)x))`
`1/2 (1-sqrt(1+4log_(2)x))`
`1/2 (1 PM sqrt(1+4 log_(2)x))`

Answer :B


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