1.

"cosec"h^(-1) ((3)/(2))+"cosec"h^(-1)(-(1)/(2))=

Answer»

`log_(E)((2+sqrt(13))/(3))`
`log_(e)(sqrt(5)-2)`
`log((2+sqrt(13))/(3(sqrt(5)+2)))`
`log_(e)2`

Answer :C


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