arcsech12 is equal to
log(โ3+โ2)
log(โ3+1)
log(2+โ3)
None of these
Explanation for the correct option:
As we know,
arcsech(x)=log[1+(1โx2)x]
Substituting x=12,
sech-112=log1+1โ1412=log21+โ32=log(2+โ3)
Hence, Option โCโ is Correct.