Question
Question: \(\sec h^{\text{-1}}\left( \frac{1}{2} \right)\) is...
sech-1(21) is
A
log(3+2)
B
log(3+1)
C
log(2+3)
D
None of these
Answer
log(2+3)
Explanation
Solution
sech−1(21)=cosh−1(2) =log(2+22−2) =log(2+3)
sech-1(21) is
log(3+2)
log(3+1)
log(2+3)
None of these
log(2+3)
sech−1(21)=cosh−1(2) =log(2+22−2) =log(2+3)