State True or False for the statement
The principal value of 
is 
True
Principal value of sin-1 x is 
Principal value of cos-1 x is [0, π]
We have, 
As, 
, so,
As, 
, so,
As, 
, so,
55
State True or False for the statement
The principal value of is
True
Principal value of sin-1 x is
Principal value of cos-1 x is [0, π]
We have,
As, , so,
As, , so,
As, , so,